RE: [pestlist] powderpost beetle?

[Anderson, Gretchen]

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I used to find these in a biology lab and storage for study skins – turns out 
the preparator used cornstarch to absorb moisture.  I had him change to borax, 
and improve clean up procedures.  That helped to reduce the problem.


[Senior Science Meeting Minutes_2017_0503]
Gretchen Anderson
Conservator
(412) 665-2607 (Office)  (412) 420-9083 (Mobile)
anders...@carnegiemnh.org


From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Alan P Van Dyke
Sent: Thursday, August 31, 2017 12:59 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] powderpost beetle?

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Thanks, Richard!  That's a relief.  It was found in a kitchen area, so it also 
makes a lot more sense.

Alan

Alan P. Van Dyke
Preservation Technician
Harry Ransom Center
The University of Texas at Austin
P.O. Drawer 7219
Austin, TX 78713-7219
P: 512-232-4614
www.hrc.utexas.edu

On Thu, Aug 31, 2017 at 11:38 AM, Pollack, Richard J 
mailto:richard_poll...@harvard.edu>> wrote:
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Not a powder post beetle. Instead, it is consistent with the merchant grain 
beetle, Oryzaephilus mercator.


Richard J. Pollack, PhD
HARVARD UNIVERSITY
Environmental Health, Safety and Emergency Management (EHSEM)
Senior Environmental Public Health Officer
46 Blackstone St.
Cambridge, MA 02139
Office: 617-495-2995  Cell: 
617-447-0763
www.ehs.harvard.edu
richard_poll...@harvard.edu

HARVARD T.H. CHAN SCHOOL OF PUBLIC HEALTH
Instructor, Department of Immunology & Infectious Diseases

From: pestlist-ow...@museumpests.net 
mailto:pestlist-ow...@museumpests.net>> on 
behalf of Alan P Van Dyke mailto:apvand...@utexas.edu>>
Sent: Thursday, August 31, 2017 12:25:53 PM
To: pestlist@museumpests.net
Subject: [pestlist] powderpost beetle?

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Hello all,

I seem to be having some luck this week.  Is this a powderpost beetle?

[Inline image 1]

Thanks,

Alan
Alan P. Van Dyke
Preservation Technician
Harry Ransom Center
The University of Texas at Austin
P.O. Drawer 7219
Austin, TX 78713-7219
P: 512-232-4614
www.hrc.utexas.edu

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RE: [pestlist] powderpost beetle?

[Anderson, Gretchen]

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Agreed.  Nice photo.
Gretchen

[Senior Science Meeting Minutes_2017_0503]
Gretchen Anderson
Conservator
(412) 665-2607 (Office)  (412) 420-9083 (Mobile)
anders...@carnegiemnh.org


From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Voron, Joel
Sent: Thursday, August 31, 2017 12:54 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] powderpost beetle?

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I agree with Richard. The head and the eyes say merchant beetle. Sawtooth and 
merchant are really similar. JTV



Joel Voron   Colonial Williamsburg Foundation

  Conservation Dept.

 Integrated Pest Management

  Office 757-220-7080

Cell 757-634-1175

  E-Mail jvo...@cwf.org



[1474552137245_IMG_0499.JPG]






From: pestlist-ow...@museumpests.net 
mailto:pestlist-ow...@museumpests.net>> on 
behalf of Pollack, Richard J 
mailto:richard_poll...@harvard.edu>>
Sent: Thursday, August 31, 2017 12:38:19 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] powderpost beetle?

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Not a powder post beetle. Instead, it is consistent with the merchant grain 
beetle, Oryzaephilus mercator.


Richard J. Pollack, PhD
HARVARD UNIVERSITY
Environmental Health, Safety and Emergency Management (EHSEM)
Senior Environmental Public Health Officer
46 Blackstone St.
Cambridge, MA 02139
Office: 617-495-2995  Cell: 617-447-0763
www.ehs.harvard.edu
richard_poll...@harvard.edu

HARVARD T.H. CHAN SCHOOL OF PUBLIC HEALTH
Instructor, Department of Immunology & Infectious Diseases

From: pestlist-ow...@museumpests.net 
mailto:pestlist-ow...@museumpests.net>> on 
behalf of Alan P Van Dyke mailto:apvand...@utexas.edu>>
Sent: Thursday, August 31, 2017 12:25:53 PM
To: pestlist@museumpests.net
Subject: [pestlist] powderpost beetle?

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Hello all,

I seem to be having some luck this week.  Is this a powderpost beetle?

[Inline image 1]

Thanks,

Alan
Alan P. Van Dyke
Preservation Technician
Harry Ransom Center
The University of Texas at Austin
P.O. Drawer 7219
Austin, TX 78713-7219
P: 512-232-4614
www.hrc.utexas.edu

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RE: [pestlist] Flying ants

[Anderson, Gretchen]

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Claire,
Look for piles of frass (fine sawdust) under or near the wood beams and walls. 
That might indicate if the ants are carpenter ants or not.  Or if you have a 
powder post beetle problem.

Gretchen

[Senior Science Meeting Minutes_2017_0503]
Gretchen Anderson
Conservator
(412) 665-2607 (Office)  (412) 420-9083 (Mobile)
anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org>


From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Bennett, Claire
Sent: Friday, July 07, 2017 10:23 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Flying ants

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Thanks for the information Gretchen and William. Attached you’ll find a picture 
that’s scaled, the larger winged ant is just over ¼” in length.

As far as I’m aware we’ve had nothing new arrive in the space, save for 
students beginning at the start of May. Our collections space suffers a bit 
being in a retrofitted barn, the ants seem to be congregating near exposed wood 
beams on the floor, hopefully that doesn’t signal anything major. We vacuumed 
and swept up the visible critters yesterday but they’ve reappeared again, our 
pest control company will be coming in shortly to hopefully rectify the 
situation today.

Fingers crossed they aren’t nesting indoors.

Claire


From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net> 
[mailto:pestlist-ow...@museumpests.net] On Behalf Of William Shepherd
Sent: Thursday, July 06, 2017 10:50 AM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: RE: [pestlist] Flying ants

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Hello Claire,

I’ll agree with Gretchen and one other thing to look at, have 
you recently moved something into your collections office area? Possibly a new 
donation or something that was stored in a less controlled space/outside? Might 
be they hitched a ride, though that doesn’t negate the need to deal with them 
but may save you some time tracking down their route inside.

William Shepherd
Collections Officer
Swift Current Museum
44 Robert Street West
Swift Current, Saskatchewan
S9H 4M9
Phone: 306-778-4815
Fax: 306-778-4818

From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net> 
[mailto:pestlist-ow...@museumpests.net]<mailto:[mailto:pestlist-ow...@museumpests.net]>
 On Behalf Of Anderson, Gretchen
Sent: July 6, 2017 8:11 AM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: RE: [pestlist] Flying ants

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Hi Claire,

It sounds like you have a nest somewhere nearby.  Ants fly and swarm when it is 
time to breed and find a new nest! Then they loose their wings and get down to 
business.  What size are they? If you can get a photograph with a scale in it 
would help.  I will leave to others to specifically identify them.

Generally, ants are not a direct threat to collections.  They are indicators 
that there are access points to the building as well as potential environmental 
concerns.  Carpenter ants (and bees) indicate that there is high humidity and 
rot, either in the building or in trees around the building.  Of course, dead 
ants will provide a food source for insects that are a greater risk to 
collections. It is worth determining where they are gaining access and dealing 
with them

Gretchen Anderson
Conservator
Carnegie Museum of Natural History

From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net> 
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Bennett, Claire
Sent: Thursday, July 06, 2017 9:27 AM
To: 'pestlist@museumpests.net' 
mailto:pestlist@museumpests.net>>
Subject: [pestlist] Flying ants

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Hi all,

A cluster of these flying ants 

RE: [pestlist] Flying ants

[Anderson, Gretchen]

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Hi Claire,

It sounds like you have a nest somewhere nearby.  Ants fly and swarm when it is 
time to breed and find a new nest! Then they loose their wings and get down to 
business.  What size are they? If you can get a photograph with a scale in it 
would help.  I will leave to others to specifically identify them.

Generally, ants are not a direct threat to collections.  They are indicators 
that there are access points to the building as well as potential environmental 
concerns.  Carpenter ants (and bees) indicate that there is high humidity and 
rot, either in the building or in trees around the building.  Of course, dead 
ants will provide a food source for insects that are a greater risk to 
collections. It is worth determining where they are gaining access and dealing 
with them

Gretchen Anderson
Conservator
Carnegie Museum of Natural History

From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Bennett, Claire
Sent: Thursday, July 06, 2017 9:27 AM
To: 'pestlist@museumpests.net' 
Subject: [pestlist] Flying ants

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Hi all,

A cluster of these flying ants and “regular” ants seem to have appeared 
overnight in our collections office area, which is adjacent/in our collections 
space. I’m wondering if anyone can identify them, provide advice on getting rid 
of them and let me know if they are a hazard to any particular 
collection/material?
If the photos aren’t good enough quality I can try and snag a few more .

Thanks very much!

Claire


Claire Bennett
Assistant Curator/Collections Coordinator
Planning Services
Legislative & Planning Services
Halton Region
905-825-6000, ext. 3441 | 1-866-442-5866
[Halton Region logo]

[Twitter logo]

[Facebook logo]

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RE: [pestlist] small grey insects in historic windowsill

[Anderson, Gretchen]

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Looks like a psocid.

[Senior Science Meeting Minutes_2017_0503]
Gretchen Anderson
Conservator
(412) 665-2607 (Office)  (412) 420-9083 (Mobile)
anders...@carnegiemnh.org


From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Megan Walsh
Sent: Wednesday, July 05, 2017 3:53 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] small grey insects in historic windowsill

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Thanks Louis!

I'm attaching a few more images: I managed to get a shot of one of them, and a 
shot of the mound/nest through the microscope. I'm also attaching an image of 
the pest next to a penny for scale reference; I drew a circle around the pest. 
Looking at it under magnification now I think it does look like a springtail.

One of my Facilities colleagues thought it looked like a dry wood termite 
(we've had infestations before, but not in that part of the house), but this 
seems way too small to be a termite. What do you think?

I removed the mound and, hopefully, most of the pests. The wood underneath the 
mound appeared undamaged, but there is tar paper insulation in the vents under 
the window, so I wonder if that is something they would be attracted to?

Many thanks, your help is very much appreciated!
Megan


From: pestlist-ow...@museumpests.net 
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Louis Sorkin
Sent: Wednesday, July 05, 2017 12:13 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] small grey insects in historic windowsill

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Look like springtails, now a non-insect.

Louis N. Sorkin, B.C.E.
Entomologist, Arachnologist, Myriapodologist
Insect Cuisine & Entomophagy Research
[cid:image001.png@01D235DF.2C8D90E0]
Division of Invertebrate Zoology|American Museum of Natural History
Central Park West at 79th Street|New York, New York 10024-5192
sor...@amnh.org
212-769-5613 voice | 212-769-5277 fax | 917-953-0094 local pager
http://www.amnh.org/our-research/staff-directory/louis-n.-sorkin
[cid:image002.jpg@01D2F5A4.EB3C3980]
The New York Entomological Society, Inc.
www.nyentsoc.org
n...@amnh.org
[cid:image001.png@01D110A0.A110F570]



From: pestlist-ow...@museumpests.net 
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Megan Walsh
Sent: Wednesday, July 05, 2017 11:52 AM
To: pestlist@museumpests.net
Subject: [pestlist] small grey insects in historic windowsill

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Hi All,

We had a rainstorm last night and some water intrusion on one of the wooden 
windowsills of our historic house. The water intrusion may be unrelated but it 
led to the discovery of a small mound of dirt (?) crawling with small grey 
insects. I've attached a couple photos but I don't know that these are clear 
enough for identification, I will try to collect a couple of the insects and 
get them under the microscope later today.

Any ideas what this might be? Could they be wood boring insects? Any 
recommendations on how to proceed?

Many thanks in advance for you thoughts and guidance!

Megan Salazar-Walsh
Assistant Conservator
The John & Mable Ringling Museum of Art

[email_logo1icons]

(941) 359-5700 ext. 1603
megan.salazar-wa...@ringling.org

5401 Bay Shore Road
Sarasota, FL 34243
www.ringling.org

Please note: Florida has a very broad public records law. Most 

RE: [pestlist] Please help me with ID of insect

[Anderson, Gretchen]

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Hello Joanna,

It is difficult to identify a pest from the damage.  If possible, get a 
close-up image of the critter.  It will also help if you can give us an idea of 
the scale?  Measure it if possible.  Sorry that I cannot be of more help at 
this point.
Gretchen Anderson
Conservator
Carnegiemnh.org

From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Jessica Lian Pace
Sent: Friday, June 23, 2017 9:33 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Please help me with ID of insect

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Hello Johanna,
Once you have the frame open, you can try using a piece of clear tape to 
capture the insect.  If a standard microscope is not readily available, a 
simple microscope attachment for the smartphone can be obtained for a very 
reasonable price.  https://www.amazon.com/dp/B00QLYPMZW?psc=1
Good luck!

Best,
Jessica

On Fri, Jun 23, 2017 at 8:42 AM, Diehl Johanna 
mailto:johanna.di...@khm.at>> wrote:
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Sorry!!

Von: Diehl Johanna
Gesendet: Freitag, 23. Juni 2017 14:41
An: pestlist@museumpests.net
Betreff: AW: [pestlist] Please help me with ID of insect

Now with images

Von: pestlist-ow...@museumpests.net 
[mailto:pestlist-ow...@museumpests.net] Im Auftrag von Diehl Johanna
Gesendet: Freitag, 23. Juni 2017 14:38
An: pestlist@museumpests.net
Betreff: AW: [pestlist] Please help me with ID of insect

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Dear Rich,
attached some more pictures. Have you any ideas?
The insects move, that means they are alive and they are very small (2mm). But 
we will open the pictureframe anyway to get a further view on the problem.
Thanks
Johanna
Kunsthistorisches Museum Wien

Mag. Johanna Diehl
Restauratorin
Kunstkammer & Schatzkammer

T +43 1 525 24 - 4420
F +43 1 525 24 - 4499
M +43 699 181 13 355
johanna.di...@khm.at
www.khm.at

KHM-Museumsverband,
Wissenschaftliche Anstalt öffentlichen Rechts

Burgring 5, 1010 Wien, Österreich




Von: pestlist-ow...@museumpests.net 
[mailto:pestlist-ow...@museumpests.net] Im Auftrag von RJPollack
Gesendet: Freitag, 23. Juni 2017 11:42
An: pestlist@museumpests.net
Betreff: Re: [pestlist] Please help me with ID of insect

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Johanna,

The images are not of sufficient resolution or magnification to allow for an 
answer with any assurance. Please try to find a way to obtain better images. 
Alternatively, sample the physical material and consider submitting it for 
evaluation.

Best regards,
Rich

Richard Pollack, PhD.
President & Chief Scientific Officer
IdentifyUS, LLC
320 Needham Street
Suite 200
Newton, MA 02464-1593
--
617.600.6360  (W)
617.513.9266  (M)
[cid:image009.png@01D2EE92.B1ACBF50] 
 [cid:image010.png@01D2EE92.B1ACBF50] 
   
[cid:image011.png@01D2EE92.B1ACBF50] 
  
 
[cid:image012.png@01D2EE92.B1ACBF50]   
 [cid:image013.png@01D2EE92.B1ACBF50]  
[cid:image014.png@01D2EE92.B1ACBF50] 
[cid:image015.png@01D2EE92.B1ACBF50][cid:image016.png@01D2EE92.B1ACBF50]

On Jun 23, 2017, at 5:20, Diehl Johanna 
mailto:johanna.di...@khm.at>> wrote:

This is a message from th

Re: [pestlist] practical perspective on BookLouse and Minute Scavenger Beetles

[Anderson, Gretchen]

Bernice, let me echo Carolyn's thoughts on these critters. Both the brown 
scavenger beetle (fungus beetle) and psocids indicate that you have moisture 
problems. Either high humidity or leakage.  A combination of controlling the 
moisture and housekeeping usually does the trick. Look for leakage, maybe from 
an HVAC, maybe from related to roofing problems or building maintenance. The 
last time I dealt with the scavenger beetle we discovered that the mortar 
around some stone blocks was completely disintegrated. Once it was repaired the 
bugs left and a bunch of other chronic water problems disappeared!

Gretchen

Sent from my iPhone

On May 26, 2015, at 4:00 PM, Carolyn Leckie 
mailto:clec...@mus-nature.ca>> wrote:


Hi Bernice

I just thought I would add a few practical words about our experience with 
these pests.

We have sporadic appearance of both booklouse (psocids) and minute brown 
scavenger beetles. They come and go.

While we do not like them, after much experience, research and reflection (I 
can provide more info if you like)   we tend to "mentally classify" them as 
"humidity indicators" or warning signs of potentially more damaging humidity 
related pests e.g. silverfish.  That is not to mean we ignore them. In one area 
of the building we know why we have a small cyclical problem with the minute 
brown scavenger beetle (50%RH and hygroscopic cellulose in a fireproofing 
material on overhead metal beams). In the other room there is a small HVAC unit 
with an emergency drip pan underneath and a drain tube that leads to a bucket. 
We think the occasional drips of water that wind up in the bucket cause the 
spike in psocids. We hope to work with Faclities to find a slightly  better 
system that the bucket.

Ironically we try to call the booklouse, psocids because we find it a little 
less alarming and helps us keep it in perspective when we are monitoring their 
numbers.

I hope that helps

Carolyn Leckie
Conservator
Canadian Museum of Nature

From: Louis Sorkin [mailto:sor...@amnh.org]
Sent: May-26-15 3:12 PM
To: pestlist@museumpests.net
Subject: [pestlist] RE: identification help please


BTW there's also a booklouse in one of the pictures (the one with the pale 
beetle).

Sorry, misspelled in this sentence. Ventral views and tarsal views would help, 
but the latter might be difficult to provide.


From: Louis Sorkin [mailto:sor...@amnh.org]
Sent: Tuesday, May 26, 2015 1:44 PM
To: pestlist@museumpests.net
Subject: [pestlist] RE: identification help please


The paler one might be a bit younger than the darker one and hasn't yet tanned 
and darkened. These look like members of the Latridiidae and probably belong to 
a species of Corticarina or Corticaria, possibly leaning toward a member of the 
first genus.  Vental views and tarsal views would help, but the latter might be 
difficult to provide.

Louis N. Sorkin, B.C.E.
Entomologist, Arachnologist, Myriapodologist
Division of Invertebrate Zoology
American Museum of Natural History
Central Park West at 79th Street
New York, New York 10024-5192
sor...@amnh.org
212-769-5613 voice
212-769-5277 fax

The New York Entomological Society, Inc.
www.nyentsoc.org
n...@amnh.org



From: Morris, Bernice [mailto:bernice.mor...@philamuseum.org]
Sent: Tuesday, May 26, 2015 10:30 AM
To: pestlist@museumpests.net
Subject: [pestlist] identification help please


Can anyone help me to identify these small insects? They are about 2mm long and 
were found near wooden objects.

Many thanks!
Bernice

Bernice Morris
Associate Conservator of Costume and Textiles
Philadelphia Museum of Art
215-684-7579
bernice.mor...@philamuseum.org





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RE: [pestlist] An interesting IPM challenge - dermestids in a pipe organ.

[Anderson, Gretchen]

This is a message from the Museumpests List.
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---
Thank you Barbara!

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org>
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
Appelbaum & Himmelstein
Sent: Thursday, June 12, 2014 1:39 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] An interesting IPM challenge - dermestids in a pipe 
organ.

This is a message from the Museumpests List.
To post to this list send it as an email to 
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John Watson, conservator at Colonial Williamsburg, is an organ expert.  Try 
him: JWatson @cwf.org<http://cwf.org>.

Barbara



On Jun 12, 2014, at 12:55 PM, Anderson, Gretchen 
mailto:anders...@carnegiemnh.org>> wrote:


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Hi all,
Colleagues just brought me an interesting challenge:  a potential dermestid 
infestation in a pipe organ.  The samples they brought me have numerous cast 
larval skins - definitely dermestid, I suspect Anthrenus sp..  The little 
darlings have damaged the felt pads (stops).   I sent my friends back to their 
pipe organ with sticky traps to see if the infestation is active, and to see if 
we can get a better identification.

Has anyone encountered this situation in an organ?  And any suggestions on 
proceeding - besides the usual good housekeeping. Obviously freezing is not 
an option!

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org>
http://www.carnegiemnh.org<http://www.carnegiemnh.org/>


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[pestlist] An interesting IPM challenge - dermestids in a pipe organ.

[Anderson, Gretchen]

This is a message from the Museumpests List.
To post to this list send it as an email to pestlist@museumpests.net
To unsubscribe please look at the footer of this email.
---
Hi all,
Colleagues just brought me an interesting challenge:  a potential dermestid 
infestation in a pipe organ.  The samples they brought me have numerous cast 
larval skins - definitely dermestid, I suspect Anthrenus sp..  The little 
darlings have damaged the felt pads (stops).   I sent my friends back to their 
pipe organ with sticky traps to see if the infestation is active, and to see if 
we can get a better identification.

Has anyone encountered this situation in an organ?  And any suggestions on 
proceeding - besides the usual good housekeeping. Obviously freezing is not 
an option!

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org


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RE: [pestlist] Larvae Identification

[Anderson, Gretchen]

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Agreed, they do not look like webbing clothes moth larva or case making clothes 
moths (which are normally white, with darkish heads).  I suggest that you keep 
monitoring with sticky traps and see what the adult form is – easier to 
identify.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Tony 
Irwin
Sent: Saturday, June 07, 2014 3:47 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Larvae Identification

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To me, they look more like beetle larvae - Cryptophagidae or Latridiidae 
perhaps. If they are, this might indicate a humidity problem in your bedrooms, 
as they often occur with outbreaks of mould. Something to check... :-)
Tony

Dr A.G.Irwin
47 The Avenues
Norwich
Norfolk NR2 3PH
England
mobile: +44(0)7880707834
phone: +44(0)1603 453524

On 7 June 2014 15:43, Adams, Robyn 
mailto:rad...@mountvernon.org>> wrote:
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Happy Saturday!

Over the past few months I’ve found a few (~4-5) of these small red larvae on 
bug traps in our bedrooms. See attached images. They are about 1mm long when 
I’m finding them. From what I could tell, I think they might be webbing clothes 
moths larvae in very early stages. Am I correct, or is it an entirely different 
insect?

Thank you!
Robyn

--
Ms. Robyn Adams
Collections Management Assistant
George Washington's Mount Vernon
P.O. Box 110
Mount Vernon, VA 22121
rad...@mountvernon.org
Office: 703.799.6861
Fax: 703.799.8698
mountvernon.org


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Re: [pestlist] vapona

[Anderson, Gretchen]

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Thanks Lou.  I have wondered if there was a new formulation. 

Barbara

Sent from my iPhone

> On Jun 8, 2014, at 9:34 AM, "Louis Sorkin"  wrote:
> 
> This is a message from the Museumpests List.
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> ---
> Vapona (Dichlorvos) is under a different formulation than it was years ago. 
> Produced now as Nuvan strip made by AMVAC. Also as Hot Shot No Pest Strip. 
> It's not registered in Canada.  It's an organophosphate insecticide, a 
> cholinesterase inhibitor action material. Atropine is the antidote. Different 
> ones are formulated for professional use and some for general public use.  I 
> think it's a big problem in letting the public use it; they really don't read 
> the instructions that well.  I really don't know if I'd include it as a 
> product for your book, unless of course, you are also including other 
> insecticides and pros and cons.
> 
> Louis N. Sorkin, B.C.E.
> Entomologist, Arachnologist
> Division of Invertebrate Zoology
> American Museum of Natural History
> Central Park West at 79th Street
> New York, New York 10024-5192
> sor...@amnh.org
> 212-769-5613 voice
> 212-769-5277 fax
> 
> The New York Entomological Society, Inc.
> www.nyentsoc.org
> n...@amnh.org
> 
> 
> 
> From: ad...@museumpests.net [ad...@museumpests.net] on behalf of 
> aa...@mindspring.com [aa...@mindspring.com]
> Sent: Saturday, June 07, 2014 1:27 PM
> To: pestlist@museumpests.net
> Subject: [pestlist] vapona
> 
> This is a message from the Museumpests List.
> To post to this list send it as an email to pestlist@museumpests.net
> To unsubscribe please look at the footer of this email.
> ---
> I am working on the pest control chapter of my next book.
> 
> Question:  I have a note to myself from the March meeting about increasing 
> moth problems and the usefulness of Vapona. Should I be recommending this?
> 
> Barbara Appelbaum
> 
> 
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Re: [pestlist] vapona

[Anderson, Gretchen]

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Sorry, sent last message before I was done with my thought. 

Barbara. I agree with Lou about not including it on the chapter - or rather how 
to include it. Chemical pesticides have to be registered for use in public 
buildings, both local and federal. At least in the US. Also sole reliance on 
pesticides carries dangers- we stop monitoring and observing.
Gretchen

Sent from my iPhone

> On Jun 8, 2014, at 9:34 AM, "Louis Sorkin"  wrote:
> 
> This is a message from the Museumpests List.
> To post to this list send it as an email to pestlist@museumpests.net
> To unsubscribe please look at the footer of this email.
> ---
> Vapona (Dichlorvos) is under a different formulation than it was years ago. 
> Produced now as Nuvan strip made by AMVAC. Also as Hot Shot No Pest Strip. 
> It's not registered in Canada.  It's an organophosphate insecticide, a 
> cholinesterase inhibitor action material. Atropine is the antidote. Different 
> ones are formulated for professional use and some for general public use.  I 
> think it's a big problem in letting the public use it; they really don't read 
> the instructions that well.  I really don't know if I'd include it as a 
> product for your book, unless of course, you are also including other 
> insecticides and pros and cons.
> 
> Louis N. Sorkin, B.C.E.
> Entomologist, Arachnologist
> Division of Invertebrate Zoology
> American Museum of Natural History
> Central Park West at 79th Street
> New York, New York 10024-5192
> sor...@amnh.org
> 212-769-5613 voice
> 212-769-5277 fax
> 
> The New York Entomological Society, Inc.
> www.nyentsoc.org
> n...@amnh.org
> 
> 
> 
> From: ad...@museumpests.net [ad...@museumpests.net] on behalf of 
> aa...@mindspring.com [aa...@mindspring.com]
> Sent: Saturday, June 07, 2014 1:27 PM
> To: pestlist@museumpests.net
> Subject: [pestlist] vapona
> 
> This is a message from the Museumpests List.
> To post to this list send it as an email to pestlist@museumpests.net
> To unsubscribe please look at the footer of this email.
> ---
> I am working on the pest control chapter of my next book.
> 
> Question:  I have a note to myself from the March meeting about increasing 
> moth problems and the usefulness of Vapona. Should I be recommending this?
> 
> Barbara Appelbaum
> 
> 
> --
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Re: [pestlist] vapona

[Anderson, Gretchen]

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Barbara - 
I agree with all that has been said. A product not to be used. It is also a 
nerve toxin.   Basically bad stuff. Moths, dermestids, other museum pests can 
all be dealt with though basic IPM methods.  Pesticides, if used at all, should 
not be used on or near objects. Crevice treatments maybe, especially in old 
buildings. Good housekeeping, thermal, anoxic are the preferred treatment.

Gretchen

Sent from my iPhone

> On Jun 7, 2014, at 7:44 PM, "Ronald Harvey"  wrote:
> 
> This is a message from the Museumpests List.
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> ---
> This is not the product you want to use.  It will despot on collection items 
> and can appear as crystalline - it is a carcinogen and it also drips onto 
> surfaces.  Not to be used!
> Ron Harvey
>> On Jun 7, 2014, at 1:27 PM, aa...@mindspring.com wrote:
>> 
>> This is a message from the Museumpests List.
>> To post to this list send it as an email to pestlist@museumpests.net
>> To unsubscribe please look at the footer of this email.
>> ---
>> I am working on the pest control chapter of my next book.
>> 
>> Question:  I have a note to myself from the March meeting about increasing 
>> moth problems and the usefulness of Vapona. Should I be recommending this? 
>> 
>> Barbara Appelbaum
>> 
>> 
>> --
>> To send an email to the list, send your msg to pestlist@museumpests.Net
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> 
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[pestlist] RE: Pest damage identification

[Anderson, Gretchen]

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---
You are doing the right thing - checking the collection.  The first thing is 
not to panic - just collect data and keep your eye open.  You might take one of 
the specimens that you suspect might be infested and isolate it - see if 
something happens  - put it in a plastic bag and keep your eye on it.

Good luck.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org>
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Suellen 
Jacob
Sent: Thursday, May 29, 2014 1:52 PM
To: pestlist@museumpests.net
Subject: [pestlist] RE: Pest damage identification

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Gretchen:

That's why I'm so disconcerted about this - I don't normally see any other 
evidence. Once I found a moth in one of the cabinets where a damaged specimen 
was, but I didn't save it (dumb!). I'll put sticky traps in the affected 
cabinets. I have some on the floor, but they don't catch anything that I think 
would be causing this. Perhaps there is no active infestation - I am relatively 
new here, and I found these on my second check over the entire collection. 
Maybe they were missed the first time around.

Thanks for your advice!

-Suellen

From: ad...@museumpests.net<mailto:ad...@museumpests.net> 
[mailto:ad...@museumpests.net] On Behalf Of Anderson, Gretchen
Sent: Thursday, May 29, 2014 10:38 AM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: [pestlist] RE: Pest damage identification

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Hi Suellen,

Have you seen any dead bugs?  Cast larval skins?  It is extremely difficult to 
identify the pest without seeing frass, dead (or living) bugs.  Post pictures 
if you do.

One thing you probably should do is to place sticky (blunder) traps in the 
vicinity of the specimens - both in cabinets or boxes they are stored in, on 
shelves and floor.  Check your traps regularly to see what you have. In that 
way you will be able to better develop a strategy, and you will be able to 
determine if the infestation is active or not.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org>
http://www.carnegiemnh.org

From: ad...@museumpests.net<mailto:ad...@museumpests.net> 
[mailto:ad...@museumpests.net] On Behalf Of Suellen Jacob
Sent: Thursday, May 29, 2014 10:57 AM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: [pestlist] Pest damage identification

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Hi all,

A few of our bird and mammal specimens have damage I think comes from pests. It 
takes the form of "pits" about 4 mm wide in specimen skin with gray crumbly 
material inside. I've attached 2 photos. Does anybody know what caused it?

Thanks,
Suellen



Suellen Jacob
Vertebrate Collections Manager
Department of Biological Sciences
California State University, Long Beach
suellen.ja...@csulb.edu<mailto:suellen.ja...@csulb.edu>

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[pestlist] RE: Pest damage identification

[Anderson, Gretchen]

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Hi Suellen,

Have you seen any dead bugs?  Cast larval skins?  It is extremely difficult to 
identify the pest without seeing frass, dead (or living) bugs.  Post pictures 
if you do.

One thing you probably should do is to place sticky (blunder) traps in the 
vicinity of the specimens - both in cabinets or boxes they are stored in, on 
shelves and floor.  Check your traps regularly to see what you have. In that 
way you will be able to better develop a strategy, and you will be able to 
determine if the infestation is active or not.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Suellen 
Jacob
Sent: Thursday, May 29, 2014 10:57 AM
To: pestlist@museumpests.net
Subject: [pestlist] Pest damage identification

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Hi all,

A few of our bird and mammal specimens have damage I think comes from pests. It 
takes the form of "pits" about 4 mm wide in specimen skin with gray crumbly 
material inside. I've attached 2 photos. Does anybody know what caused it?

Thanks,
Suellen



Suellen Jacob
Vertebrate Collections Manager
Department of Biological Sciences
California State University, Long Beach
suellen.ja...@csulb.edu

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RE: [pestlist] Bed Bugs - Freeze or Freeze and Thaw?

[Anderson, Gretchen]

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Generally we do not use the freeze- re-thaw freeze method.  Just Freeze!  
However, we do recommend that you bag the objects (or books in this case) in 2 
layers of plastic – sealed.  That reduces fluctuation in relative humidity.  
Make sure that the temperature is cold enough (-20 deg C. is what I aim for). 
The freezer should not cycle (defrost).  Also, I would recommend that you make 
sure the freeze is long enough – Will 72 hours get the center of the books down 
to the critical temperature?There is a white paper describing 
recomendaitons on the Museum Pest Net web site.

Good luck.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
Fletcher Durant
Sent: Friday, May 16, 2014 3:18 PM
To: pestlist@museumpests.net
Subject: [pestlist] Bed Bugs - Freeze or Freeze and Thaw?

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Hi all,

We are dealing with some returned books that have live bed bugs and plan on 
freezing them for 72 hours. Does anyone recommend doing a thaw and re-freeze or 
is that not necessary?

Any other advice and tales of personal experience with bed bug infestation 
response is most welcome.

Many thanks,
Angela and Fletcher

Angela Andres
Special Collections Conservator
New York University Libraries
70 Washington Square South, Room LL2-25
212-992-9017
angela.and...@nyu.edu


--
Fletcher Durant
Preservation Archivist
Barbara Goldsmith Preservation and Conservation Department
New York University Libraries

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[pestlist] RE: identification help please

[Anderson, Gretchen]

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John,
I have identified these at CMNH  - so we definitely have them in the museum 
system here in Pittsburgh. I had John Rawlins identify them - they are 
difficult to ID to a species level. Do you have moisture in the area of the 
traps?  Let me know if you want me to swing by and take a look.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
McLean-Cooper, Nancy (NIH/OD/ORS) [E]
Sent: Thursday, May 01, 2014 5:03 PM
To: 'pestlist@museumpests.net'
Subject: [pestlist] RE: identification help please

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John,
The beetle looks like a minute brown scavenger beetle family Latridiidae, genus 
malanophthalma.  Not sure of species.
Nancy

From: Jacobs, John [mailto:jaco...@warhol.org]
Sent: Thursday, May 01, 2014 3:41 PM
To: 'pestlist@museumpests.net'
Subject: [pestlist] identification help please

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Greetings pestlisters,

We caught this small beetle, Trap#5022-1a, in a sticky trap on 4/30/2014  in 
Pittsburgh PA.
It measures a little more than 1.5 mm long.
It seems to have 9 or so small ridges along each side of its thorax.

We also caught this small larva, Trap#5033-3b, in the same area.
It measures less than 1.5 mm long.
It was alive when captured.

Any ideas?  Latridiidae maybe?
Thanks!
:::
the warhol:
John Samuel Jacobs, MLIS
Assistant Registrar for Collections
117 Sandusky Street
Pittsburgh, PA  15212
T  412.237.8312
F  412.237.8340
E  jaco...@warhol.org
W www.warhol.org
The Andy Warhol Museum
One of the four Carnegie Museums of Pittsburgh
:::



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[pestlist] RE: Freezing of mammal skulls

[Anderson, Gretchen]

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Yes - it is common practice.  I have done it many times with no detrimental 
effects to the skulls.  If you freeze them according to the procedures 
described at the Museum Pest Network (www.museumpest.net) or by Tom Strang at 
Canadian Conservation Institute. Low temperature mitigation is a very 
successful solution to the challenge you describe. 

When you improve the environmental conditions for the collection, make sure 
that you thoroughly clean your spaces prior to returning the collections to 
them.  Get under the cabinets and into corners and crevices.  The combination 
of improvements to housekeeping and low temperature treatment is the best way 
to prevent future infestations.  Oh, and continue to monitor for pests - in 
that way you can catch a new infestation before it becomes a huge problem. 

Good luck
Gretchen Anderson
Conservator
Carnegie Museum of Natural History.

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of Weidenhofer, 
Helen (DPC-ARTS) [weidenhofer.he...@dpc.sa.gov.au]
Sent: Tuesday, March 04, 2014 8:05 PM
To: pestlist@museumpests.net
Subject: [pestlist] Freezing of mammal skulls

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Dear Pestlist colleagues,

Our Museum has a sizable collection of mammal skulls that are kept in boxes or 
trays on shelves inside cupboards. We have a persistent infestation of carpet 
beetle in the skulls that has not been eliminated by insitu fumigation.

We have funding available to improve the storage conditions of the mammals 
collection, and will be sealing the cupboards in an attempt to seal out the 
pests, however we want the collection to be pest free before it is returned to 
the modified storage cupboards.

We are considering the options to successfully treat the entire collection. Has 
anyone frozen a collection of skulls before and were there adverse effects?

Thanks,

Renita Ryan
Principal Conservator, Objects
Artlab
Department of the Premier & Cabinet
South Australia




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RE: [pestlist] Moth identification

[Anderson, Gretchen]

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I agree that it looks more like a case-making clothes moth (Tinea pellionella). 
 Webbing clothes moths are generally a golden color with less variations on the 
wing.  Look for the larva dragging around their cases.  Both species go for 
protein based fiber, fur and feathers.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Mike 
Deutsch
Sent: Thursday, January 23, 2014 4:37 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Moth identification

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Hi,
I would agree, but, webbing clothes moths do not have the dark spots on the 
wings like your specimen has.  My guess would be the casemaking clothes moth.  
This is less common but it is out there.  The larva carry around a silken case 
from which they feed from and will retreat inside when disturbed.  You may also 
find empty "cases" from larva that have left the case and have moved into the 
adult stage.  Hope this helps.

Mike Deutsch MS BCE

From: ad...@museumpests.net 
[mailto:ad...@museumpests.net] On Behalf Of Christian Hernandez
Sent: Thursday, January 23, 2014 3:30 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Moth identification

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This looks like (what I would call) a webbing clothes moth. You should consider 
thoroughly checking your collection's protein fibers (wool, feathers, fur are 
the biggest dangers).

Christian Hernandez

On Thu, Jan 23, 2014 at 1:51 PM, Ana Carolina Delgado Vieira 
mailto:ana.carolina.vie...@usp.br>> wrote:
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Dears,

We caught this moth in our storage area in last December.  I hope the picture 
could help!

We would appreciate any help for identifying this specimen.

Thank you in advance!

Best regards!

Ana Carolina Delgado Vieira
Museu de Arqueologia e Etnologia - MAE/USP
Laboratório de Conservação e Restauro
Tel/Fax:(11) 3091-4695
E-mail: ana.carolina.vie...@usp.br

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Take care,
Christian Hernandez

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RE: [pestlist] Specifications of the showcases for organic collections

[Anderson, Gretchen]

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Hi Dina,

Please tell tell us more.  More specifically, what are your collections? Thanks
Gretchen Anderson.

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of Dina Mamdouh 
[dina_m_...@hotmail.com]
Sent: Saturday, November 30, 2013 1:26 PM
To: pest list
Subject: [pestlist] Specifications of the showcases for organic collections

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Hi all,
Does any one can help me about the Precautions that have to be taken in 
showcases in museums specially for organic collections ?
Thnx for your attention
Dina

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RE: [pestlist] pest id

[Anderson, Gretchen]

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It certainly looks like the larval form of R. vespulae .  Do you use cornmeal 
in preparing your skins?  This is an attractant for grain beetles as well. At 
my former museum we were able to significantly reduce our infestations by 
eliminating the use of corn meal.  I believe our preparatory used borax instead 
- but would have to check on that detail.

Nice photo by the way.
Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Tamar 
Danufsky
Sent: Wednesday, October 02, 2013 2:57 PM
To: pestlist@museumpests.net
Subject: [pestlist] pest id

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Greetings,
A few years ago I had an infestation of Reesa vespulae in my cornmeal (all 
adults).  Today I found this (live) larva in the bird skin teaching collection.

http://www.humboldt.edu/wildmuseum/larva.html

Is this also a Reesa?
Many thanks!
Tamar

**
Tamar Danufsky
Museum Curator and
Marine Wildlife Care Center Coordinator
Department of Wildlife
Humboldt State University
Arcata, CA 95521
phone (707)826-4034
fax (707)826-4060
www.humboldt.edu/wildmuseum
www.humboldt.edu/mwcc

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RE: [pestlist] Identifying insect damage

[Anderson, Gretchen]

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Amber - I agree with Stephan - old damage.  It looks clean.  

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org


-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Stephan 
Biebl
Sent: Tuesday, October 01, 2013 1:15 PM
To: 
Subject: Re: [pestlist] Identifying insect damage

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I would say, its a old damage at the timber before kiln dried, because its very 
dark, no dust and bigger tunnels, than the usual drywood-borers (anobium, 
lyctus). And not the oldhouseborer.  ...Just observe it.
 

Stephan Biebl
Consultant for wood protection

Mariabrunnweg 15
D-83671 Benediktbeuern
Germany
www.holzwurmfluesterer.de


Am 01.10.2013 um 18:29 schrieb "Morgan, Amber" :

> This is a message from the Museumpests List.
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> ---
> We found some tunneling on a frame that we can't quite identify.  The frame 
> is a softwood, possibly basswood.  Would anyone be able to tell me what made 
> these holes, and if they are old?  We suspect that whatever made this damage 
> did it before the frame was made and that the pest responsible would have 
> perished when the wood was kiln dried, but I've rarely had to deal with 
> woodborers so I'm feeling uncertain.  We have not seen any frass whatsoever.
> 
> Many thanks,
> Amber
> 
> 
> the warhol:
> Amber E. Morgan
> Associate Registrar
> 117 Sandusky Street
> Pittsburgh, PA 15212
> T 412.237.8306
> F 412.237.8340
> E morg...@warhol.org
> W www.warhol.org
> 
> The Andy Warhol Museum
> One of the four Carnegie Museums of Pittsburgh
> 
> Email newsletter http://members.carnegiemuseums.org/email
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> 
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> 
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[pestlist] RE: Order Psocoptera

[Anderson, Gretchen]

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Psocoptera are generally considered a pest.  They feed on microscopic mold 
which indicates that the relative humidity is too high.  From personal 
experience I experienced a huge increase in population just prior to a mold out 
break.  At the very least they are an environmental indicator.

The good news is that they can be easily controlled through improved 
housekeeping and reduced RH.

Good luck.
Gretchen Anderson
Conservator
Carnegie Museum of Natural History.

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of Castle, Laura 
[laura.cas...@abdn.ac.uk]
Sent: Tuesday, July 02, 2013 7:19 AM
To: pestlist@museumpests.net
Subject: [pestlist] Order Psocoptera

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Dear all,

I was wondering if anyone could give me their opinion on the Order Psocoptera.
As far as I can tell we have a number of different types, such as 
Dorypteryx-domestica, Liposcelis-bostrychophila, Ectopsocus Briggsi and 
Psyllipsocus Ramburii.
What I would like your thoughts on is – are all/any classed as a danger to 
archive material (books, textiles, photographs)?

I use a number of different sources (online and books where possible), but if 
anyone knows of specific books that are handy for identification this would 
also be great!

Kind regards and thanks,

Laura Castle



Laura Castle
Collections Care Assistant, Glucksman Conservation Centre,
Library, Special Collections & Museums, University of Aberdeen, Bedford Road, 
Aberdeen AB24 3AA
t (office): +44 (0)1224 274268; t (studio): +44 (0)1224 273867
e: laura.cas...@abdn.ac.uk w: 
http://www.abdn.ac.uk/library/about/special/






The University of Aberdeen is a charity registered in Scotland, No SC013683.
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RE: [pestlist] wasp nest in sculpture

[Anderson, Gretchen]

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I sent your question to one of the scientists here at the Carnegie Museum of 
Natural History, Dr. John Wenzel.  His main area of study is wasps, and so has 
years of experience dealing with the little darlings and their nests.  This is 
his recommendation.



Yes, pesticide, but use the "wasp freeze" stuff in the hardware store because 
it has a refrigerant that cools down the wasps and they can't fly out and sting 
you. Usually they shoot a jet that goes several feet so you can stand back a 
bit, which is also good.  Standard bug sprays will kill them, but they may 
sting you before they die so you will be unhappy with that solution in the long 
run.  Also, use the entire can, then you will be sure you really got them.  
Anyway, you aren't going to put it on the shelf and save it for years, right 
(you better not, it is a poison). If you can decipher the label, it would be 
best to get one whose active agent is pyrethrin, a natural compound found in 
chrysanthemums, lethal to insects and apparently harmless to vertebrates. It is 
unstable in air, so it decays rapidly, which is good. In a few days, there is 
no toxin at all, not even bugs will mind. This is very good.  More commonly you 
see permethrin, which is synthetic. It is also good, but very toxic for cats 
and fish (harmless to humans in ordinary usage).



As for actually removing the nest itself (not the wasps), that will have to be 
done physically when the wasps are dead. The protein they use to attach the 
nest is tough stuff, it is kind of laminar silk (rather than threadlike). You 
will have to grab the nest and pull it out. You should do this because if you 
don't, sometime later another wasp will come along and say, "hey, check this 
out, a great place to nest!" and you are back where you started.

As always make sure that you look at what the chemicals are in the product to 
ensure that nothing will damage the metal sculpture.
Good Luck!
Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Cutler, 
Scott
Sent: Thursday, May 23, 2013 6:12 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] wasp nest in sculpture

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You might consider freezing the nest with one of the following, assuming you 
could get in to remove the frozen nest once the treatment is complete.  Note, I 
am not recommending any of these products, just suggesting the process.

Scott
Scott Cutler
Curator of Collections & Exhibits
Centennial Museum
The University of Texas at El Paso
El Paso, Texas 79968-0533 (79902 shipping zip)
915-747-6668
scut...@utep.edu


Bee & Wasp Spray: Professional Freeze
http://www.amazon.com/Bee-Wasp-Spray-Professional-Freeze/dp/B0001LE2D4

There are also a number of freeze sprays that are sold for use on electronics, 
for example:
http://www.allelectronics.com/make-a-store/item/PTR-7400/FREEZE-SPRAY-10-OZ-CAN/1.html

http://www.alliedelec.com/chemicals/freeze-sprays/

Also, some fire extinguishers will create a chill/freeze when used.  It might 
cool things down enough for you to get in and remove the nest without getting 
stung.

From: "Morris, Bernice" 
mailto:bernice.mor...@philamuseum.org>>
Reply-To: "pestlist@museumpests.net" 
mailto:pestlist@museumpests.net>>
Date: Thu, 23 May 2013 12:17:29 -0600
To: "pestlist@museumpests.Net" 
mailto:pestlist@museumpests.Net>>
Subject: [pestlist] wasp nest in sculpture

This is a message from the Museumpests List.
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Does anyone have any recommendations on how to remove a wasps nest from a steel 
and bronze outdoor sculpture? It seems that the nest is embedded somewhat 
within the sculpture so there is limited physical access. I'm starting to think 
a pesticide will be necessary...

Thank you all,
Bernice

Bernice Morris
Assistant Conservator of Costume and Textiles
Philadelphia Museum of Art
215-684-7579
bernice.mor...@philamuseum.org


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RE: [pestlist] New IPM book by Tom Strang

[Anderson, Gretchen]

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Tom,
Actually there is a free copy- I just downloaded the entire thing!  Looking 
forward to perusing it.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History
5800 Baum Blvd
Pittsburgh, PA 15202
Phone (412)665-2607
anders...@carnegiemnh.org
http://www.carnegiemnh.org

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
bugma...@aol.com
Sent: Thursday, April 11, 2013 11:14 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] New IPM book by Tom Strang

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Emily -

It's not really free.  You can get a copy of the front page and bio free, but 
the entire PhD dissertation costs $$.  I ordered one just to see what he has to 
say.

Tom
-Original Message-
From: Kaplan, Emily 
To: pestlist 
Sent: Wed, Apr 10, 2013 10:57 am
Subject: [pestlist] New IPM book by Tom Strang
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Hi everyone,
An apology if this has been posted before...
Emily
New IPM book by Tom Strang downloadable free here 
https://gupea.ub.gu.se/handle/2077/31500





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CCI e-News

April 2013


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Online Tour of CCI's Light Damage Calculator








Access "Studies in Pest Control for Cultural Property"


[https://gupea.ub.gu.se/handle/2077/31500]

CCI's Tom Strang, Senior Conservation Scientist and internationally recognized 
expert in integrated pest management, recently defended an academic 
dissertation on "Studies in Pest Control for Cultural 
Property" at the Department of 
Conservation, Faculty of Science, University of Gothenburg, Sweden.

Strang's research involves the problems of protecting cultural property from 
pests and examines some of the solutions. The use of fumigants and pesticides 
to protect collections of cultural property has changed to reduce health 
hazards and adverse interactions with materials. Alternatives, such as thermal 
treatment and controlled atmosphere fumigation, have replaced applied residual 
chemicals and exposure to reactive gases in many applications. The shift has 
introduced new risks, however. Establishing efficacy, considering side effects 
of unfamiliar control applications, and deciding how to construct systemic 
programs to reduce the risk of pest damage across a wide range of conditions 
are common challenges to the decision process. Strang's research introduces 
sufficient data and discusses complicating factors in order to address key 
concerns and enable collections care professionals to have greater confidence 
in their decisions regarding pest management.








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Re: [pestlist] Plasma Field Treatment

[Anderson, Gretchen]

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---
Pat -Thanks for answering!  I already said as much to Cricket off list.  I have 
never heard of this treatment before and would be interested in others 
opinions.  Has anyone tested this method?

My preference is for the tried and true methods of thermal treatment or anoxic 
treatments. 

Gretchen Anderson. 
Conservator,
Carnegie Museum of Natural History

- Original Message -
From: Pat Kelley [mailto:p.kel...@insectslimited.com]
Sent: Tuesday, April 09, 2013 09:10 AM
To: 'pestlist@museumpests.net' 
Subject: RE: [pestlist] Plasma Field Treatment

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Hi Cricket,

I will chime in on this since no one else has yet. I assume the lack of 
response is due in part to the fact that this form of treatment is relatively 
unconventional and not many people out there know much about it. 

I will be the first to dispel the myth that freezing does not kill the eggs. 
The research has been done on this and although different pests require 
different temperatures, freezing certainly will kill all stages of life if done 
quickly enough, cold enough and for a long enough time. All of that data is 
available on museumpests.net

I will let conservators offer advice on the possible harm from a plasma field. 
I understand that they are household materials, but it would still be good to 
know if any research has been done with this technique. You are exposing the 
materials to quite a few different scenarios between a heated argon gas and a 
dielectric field.

Pat Kelley 

-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Cricket 
Harbeck
Sent: Monday, April 08, 2013 5:37 PM
To: pestlist@museumpests.net
Subject: [pestlist] Plasma Field Treatment

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Hello All,

Does anyone have any knowledge of or advice about using a plasma field to treat 
against a webbing clothes moth infestation?  I'm dealing with a household 
infestation and am looking to treat furniture, clothing and rugs, but no 
artwork.  A company I've contacted said the best treatment method is using 
plasma field, and described the process as first freezing the materials, and 
then introducing a dielectric field with argon gas.  They said freezing kills 
the adults while the plasma field kills the eggs and sanitizes.  They say this 
method is better than traditional freezing, which doesn't guarantee killing the 
eggs.  I am an art conservator, and was trained to freeze objects for such an 
infestation using a standard procedure.  I'm just really curious about this 
treatment and was hoping someone had some thoughts about its use, efficacy and 
possible harm to the treated materials.  

Thank you very much in advance.
Cricket



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The information contained in this message and/or attachments is intended only 
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of the individual sender.


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RE: [pestlist] Threshold levels

[Anderson, Gretchen]

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Hi Amy,

There is no hard and fast rule on setting thresholds.  There are simply to many 
variables - the location of the museum, surrounding environments, the age of 
the building, the type of collection (some are more susceptible than others).  
The point of an IPM program is to reduce the level of risk to your collection 
through best practices.  You need to find out what kind of pests you have in 
the building so that you can strategically strike at the problem (or pest). The 
threshold will depend on your situation.  The cost will depend on your 
situation.

You are correct, insects (and other) pests will get in the building.  You 
monitor to determine if the insects are a direct or an indirect threat to your 
collection. Yes, you might be catching only ground beetles and other 
incidentals - but, in that case, you are setting yourself up for the insects 
that eat dead beetles - and these are the same that will infest wool rugs and 
wool clothing, hide and fur clothing, taxidermy, scientific specimens.. the 
list goes on and on.

An integrated pest management program (IPM) will help you reduce the risk of 
having an infestation. An IPM helps you develop strategies to keep your 
collection free from infestation.  I know that does not help with your question 
- but only you can determine what the threshold is.  Ideally we would all like 
no pests - but since we live in the real world - IPM is the best way to 
approach the problem.

Linda - I agree with Tom. IPM can be very cost effective for small museums.  I 
have worked with many small regional, tribal and small university museums 
through the IPM class I teach. My students have come up with some very creative 
and very inexpensive ways to monitor for pests. One of the efficiencies is that 
if you know who is getting in and where they are coming from, you can often 
block the holes which will help any efforts to control climate inside the 
building.

Good luck!
Gretchen Anderson
Conservator
Carnegie Museum of Natural History
anders...@carnegiemnh.org

Instructor
MuseumClasses.org


From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Linda 
Kemp
Sent: Tuesday, February 26, 2013 1:35 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Threshold levels

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Hi Amy,
I'd be really interested in seeing what responses you get and hopefully I will 
via Museumpests.net.   I'm currently looking at the cost effectiveness of IPM 
in small museums and how it can be carried out on a very small or non-existent 
budget, so this information would be very useful.

Kind regards

Linda Kemp

Linda Kemp
BSc Conservation Student
The Cass. School of Design
Sir John Cass Faculty of Art, Architecture & Design
London Metropolitan University
41 Commercial Road
London E1 1LA
e-mail: linda.k...@email59.plus.com



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Miller, 
Amy (FDA)
Sent: 26 February 2013 18:03
To: pestlist@museumpests.net
Subject: [pestlist] Threshold levels

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---
I am interested in finding out information about insect threshold levels in 
museums and collections.  Obviously, insects can get into buildings and be 
found on monitoring devices such as sticky traps, but they do not warrant any 
type of control.  How do you determine control when nothing in particular is 
infested?  Any resources on threshold levels would be greatly appreciated.

Thank you,
Amy K. Miller

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[pestlist] RE: Psocids

[Anderson, Gretchen]

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An increase in psocids usually means high humidity.  What is the relative 
humidity in your area.  If you reduce the RH and clean the area, removing dust  
you will be able to reduce the population.

Gretchen Anderson
Conservation
Carnegie Museum of Natural History.

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Miller, 
Amy (FDA)
Sent: Wednesday, January 23, 2013 4:13 PM
To: pestlist@museumpests.net
Subject: [pestlist] Psocids

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Hello,

I am curious what others are using in their collections for general pest 
control and if anyone has had psocids visiting their collections.  I've just 
discovered psocids in an insect and herbarium cabinet and am interested in 
finding out if anyone else has had this issue and how it was corrected.

Thank you,
Amy K. Miller


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Re: [pestlist] anoxic treatments preferences

[Anderson, Gretchen]

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Thanks Jerry - Nicely put! Gretchen

From: Jerry Shiner [mailto:i...@keepsafe.ca]
Sent: Friday, December 21, 2012 11:11 AM
To: pestlist@museumpests.net 
Subject: RE: [pestlist] anoxic treatments preferences

season's greetings to all you pestlist people

I don't think you will find a comparison study, In my experience both systems 
(purge and passive), and combinations of these systems work just fine. The only 
challenges are providing a well sealed impervious enclosure, and ensuring that 
you have removed all (well, almost all) the oxygen. Note that cost comes into 
play, too, and the suggestions below are also fairly cost-effective.

For small treatments, it is easiest to make a bag, add some oxygen absorbers, 
and seal (with a wide, clean seal). Keep the treatment kit at room temperature 
(or above, if you can), and wait an appropriate time (depending on pest and 
tempereature).

For very large treatments, a constant flow of nitrogen or argon may be needed 
to compensate for leakage into the enclosure. Again, time and temperature for 
appropriate pest species.

For most "in between" sizes, I suggest a quick partial purge with nitrogen (OK, 
or Argon), and the inclusion of enough oxygen absorbers to remove residual 
oxygen, and absorb any oxygen leaking in during treatment.

That's the bare bones, and there are many "tricks of the trade" that save time, 
effort, and nerves, but the above rules of thumb may be useful.

js

Jerry Shiner
Keepsafe Microclimate Systems
800 683 4696  www.keepsafe.ca 
i...@keepsafe.ca
Specializing in the design, procurement, and installation of environmental 
control systems in museums and archives.


-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Morgan, 
Amber
Sent: Friday, December 21, 2012 9:32 AM
To: pestlist@museumpests.net
Subject: [pestlist] anoxic treatments

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It seems that whenever the topic of anoxia comes up, there are two schools of 
thought:  those who think oxygen scavengers are the best method, and those who 
think inert gasses are more effective.  Does anyone know if there has been a 
good comparative study?  I'm finding a good amount of literature supporting one 
side or another, but so far nothing that makes a direct comparison of the 
effectiveness of each method.

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this in error, please contact the sender and delete the material from any 
system and destroy any copies. Any views expressed in this message are those of 
the individual sender.   ­­
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or entitie

RE: [pestlist] carpet beetles in books

[Anderson, Gretchen]

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Agreed.

Definitely freeze the boxes and replace the wool felt with something less 
edible.  It sounds like the felt is the problem.   When you freeze make sure 
that you have encapsulated the boxes in 2 layers of well-sealed plastic to 
reduce rh shifts.

You might look into using ageless or rp to create your anoxic environment. This 
is a passive system and easy to set up. Check it out prior to doing it though, 
just to make sure that this would not affect the vellum

Gretchen Anderson
Conservator
Carnegie Museum of Natural History.

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of mary 
baughman
Sent: Wednesday, November 14, 2012 11:30 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] carpet beetles in books

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I would freeze the boxes, in polyethylene bags, or wrapped in plastic, for at 
least 72 hours.
Consider removing the felt lining and replacing it with archival board.

Freezing parchment and vellum can be problematic.
I would vacuum the books, seal each book in a polyethylene bag, and leave them 
for a month to see if anything eats through the bags.
Most likely it is only the wool lining of the boxes that is infested.

Mary Baughman
Book Conservator
Harry Ransom Humanities Research Center
The University of Texas at Austin
P.O.Drawer 7219
Austin, Texas  78713-7219

Telephone (512) 471-8635 or 471-9117
Fax (512) 471-7930


On Nov 14, 2012, at 10:05 AM, Sharlane Gubkin wrote:


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We received a set of valuable vellum-bound books as a gift in our library that 
will be housed in Special Collections. The handmade boxes for each book are 
lined with wool felt. During our routine check of incoming gift items, we 
noticed some dead larvae of carpet beetles. While nothing was found alive, and 
I have seen no new frass on the cart where they are now stored, I was thinking 
of freezing them to be safe since we have access to a local freezer at the 
Natural history Museum, but do not know if this is OK for vellum.  The books 
are not wet. I contacted Jerry Schiner from Keepsafe about anoxic treatment 
many times but never hear back! Is it safe to just vacuum the books?
Any advise would be appreciated.
Thanks!
Sharlane Gubkin

--
Sharlane Gubkin
Preservation Officer
Kelvin Smith Library
Case Western Reserve University
11055 Euclid Avenue
Cleveland, OH 44106-7151
(216) 368-3465

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RE: [pestlist] RE: beetle identification

[Anderson, Gretchen]

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Yes that is definitely a dermestid larva - not sure specifically which kind.  I 
also see a psocid on the trap indicating that you have some moisture in the 
area - the psocid is below and to the left of the speck of dirt.   Some of the 
other debris on the trap (upper edge) kind of looks like larva that have been 
eaten by other bugs.  How long do you leave your traps out?  I have seen 
situations where a trap with dead things on it becomes the food source.   The 
other question I have is how many dermestid larva are you seeing?  1 or 2 
occasionally, 10 regularly or a whole bunch?  The traps should be able to tell 
you where the worst of the problem is.

I use a bodelin proscope - another digital microscope - for this kind of thing. 
 If you are in the market it is worth checking into.  
http://www.bodelin.com/proscopehr

Good luck,
Gretchen Anderson
Conservator
Carnegie Museum of Natural History.

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
Peterson, Elizabeth A
Sent: Thursday, November 08, 2012 12:28 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] RE: beetle identification

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I've managed to get a better image, I think. It's attached.

Thanks to all who've responded so far, and to Dave for the microscope info.

Annie

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Ross, 
David
Sent: Thursday, November 08, 2012 7:32 AM
To: 'pestlist@museumpests.net'
Subject: RE: [pestlist] RE: beetle identification

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Hi Annie.

I am enclosing a link for a digital microscope that I have found to be very 
useful for identifying pests. It's a very versatile tool that will allow you to 
photograph and send seamlessly.

www.dino-lite.com

Dave Ross
Vault and Holdings Officer
Library and Archives Canada
Preservation Centre
david.r...@bac-lac.gc.ca

From: ad...@museumpests.net 
[mailto:ad...@museumpests.net] On Behalf Of Appelbaum & Himmelstein
Sent: November-07-12 5:46 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] RE: beetle identification

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The last pix I sent to the list were taken with a regular digital camera on 
zoom, and on a tripod - nothing special.
Barbara Appelbaum
On Nov 7, 2012, at 4:41 PM, Morgan, Amber wrote:

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Unfortunately, that image is too small to identify what you've got there.  Is 
there a chance you could take a higher resolution image?  You can send it to me 
off list if you want.  I'm not an entomologist, but there are certain pests 
that I can confidently identify.


From: ad...@museumpests.net 
[mailto:ad...@museumpests.net] On Behalf Of Peterson, Elizabeth A
Sent: Wednesday, November 07, 2012 3:45 PM
To: pestlist@museumpests.net
Subject: [pestlist] RE: beetle identification

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The picture I linked to is just one that I know is a carpet beetle larva; I've 
now attached an image of one from my own trap, with the pest in question 
circled in red. It's not a great image, so I don't know how much it will help, 
but that's what I'm looking at.

I'll try putting some traps in areas with more light and see if I catch any 
adults; my traps are mostly in dark corners now. Fluorescent lighting is the 
only source of light, the windows in the building were covered with plywood. 
I've found them in traps in various place throughout the building, s

[pestlist] Stretchers with powder post

[Anderson, Gretchen]

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Dear friends

A colleague of mine has contacted me with a pest situation that is a little out 
of my area of expertise.  Her museum recently received a large shipment of 
paintings for an exhibition – about 70 acrylic paintings on canvas.  They have 
unpacked about one third of them and found signs of infestation, dead beetles 
(unidentified at this point), larval casings, dust, etc.  Most concerning is 
some of the stretchers have exit holes with powder post beetles caught in tape. 
The powder post beetles have been positively identified. Nothing live has been 
found to date. Staff are examining the paintings and vacuuming the backs with 
HEPA filtration.  They are collecting specimens for identification. The 
paintings with powder post evidence is re-wrapped in plastic and set aside.

They have determined that anoxic treatment is the best option.  Unfortunately, 
they are rushed for time – the exhibition is scheduled to open late October.  
She and I discussed the process, but since I only know it theoretically - never 
having actually done a nitrogen treatment myself – I thought we should got to 
the experts! My colleague is looking for the following

1)  Advice from someone who has experience with this type of anoxic 
treatment on a large shipment

2)  Suggestions on where they can get a chamber or bubble

3)  Anyone who might have experience with this system:  
http://www.insituconservation.com/en/products/nitrogen_disinfestation_systems/veloxy_system

The pest management company they use is sending an entomologist to verify 
identification on Monday.  The pest management company will help to facilitate 
treatment.

Any advice or suggestions will be welcome.  You can either post on line or send 
them to me off-line.
Thanks

Gretchen


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RE: [pestlist] Freezing pinned insects

[Anderson, Gretchen]

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With the double bag and the glass topped drawers there should be no 
condensation on the pins.  Should not be a problem.

Let me know if there are any other questions. 
Gretchen

-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of dana 
senge
Sent: Friday, September 07, 2012 2:38 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Freezing pinned insects

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Thanks Gretchen,

I was hoping you would have a moment to answer this one-

Dana

On Fri, Sep 7, 2012 at 11:31 AM, Anderson, Gretchen  
wrote:
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> ---
> No - there is no problem with freezing pinned insects.  Here at the Carnegie 
> Museum of Natural History the entomology department has been  freezing the 
> pinned collection for pest control  for close to 20 years.
>
> Gretchen Anderson
> Conservator
> Carnegie Museum of Natural History
>
> -Original Message-
> From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf 
> Of dana senge
> Sent: Friday, September 07, 2012 1:36 PM
> To: pestlist@museumpests.net
> Subject: [pestlist] Freezing pinned insects
>
> This is a message from the Museumpests List.
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> unsubscribe please look at the footer of this email.
> ---
> Does anyone have concern of freezing pinned insects?
>
> We are processing a collection and doing preventive freezing before it is 
> moved into the repository. Is there any concern about condensation developing 
> on a metal pin and damaging a dried insect?
>
> The collections will are in boxes and will be double wrapped in plastic for 
> the freezing proces which should elimiate the risk of condensation developing.
>
> Thanks-
>
> Dana Senge
> Western Archeological and Conservation Center National Park Service 
> Tucson, AZ
>
>
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RE: [pestlist] Freezing pinned insects

[Anderson, Gretchen]

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No - there is no problem with freezing pinned insects.  Here at the Carnegie 
Museum of Natural History the entomology department has been  freezing the 
pinned collection for pest control  for close to 20 years. 

Gretchen Anderson
Conservator 
Carnegie Museum of Natural History

-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of dana 
senge
Sent: Friday, September 07, 2012 1:36 PM
To: pestlist@museumpests.net
Subject: [pestlist] Freezing pinned insects

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Does anyone have concern of freezing pinned insects?

We are processing a collection and doing preventive freezing before it is moved 
into the repository. Is there any concern about condensation developing on a 
metal pin and damaging a dried insect?

The collections will are in boxes and will be double wrapped in plastic for the 
freezing proces which should elimiate the risk of condensation developing.

Thanks-

Dana Senge
Western Archeological and Conservation Center National Park Service Tucson, AZ


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RE: [pestlist] Plastic containers

[Anderson, Gretchen]

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Jerry. I have seen what Amber's system - and it is impressive. The containers 
are altered, including additional gaskets.  Yes, it is more complicated than 
just  purchasing off the shelf  and the enclosures need to be tested.  But this 
is an affordable way to go and it is possible.   As I stated earlier I was able 
to maintain micro climate for 5 years with confidence.  I am not saying that it 
is completely air tight.  But we were able to maintain 30% RH for that length 
of time.  

Gretchen 

-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Jerry 
Shiner
Sent: Monday, August 27, 2012 5:27 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Plastic containers

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Neil

Providing an "air tight" seal for a large tub is far more challenging than 
snapping a gasketed lid onto a small box. For a truly air tight solution, you 
should consider a flexible (plastic) envelope.  I don't think you will find a 
large, truly air tight container at reasonable cost.

If you decide to bag the artifact(s), you need to consider the materials used 
to make the bag, and your expectations. Are you simply protecting from air 
currents and dust (short term work like freezing or construction dust 
protection)? Will offgassing from the plastic (or its
plasticizers) be a hazard? Are you concerned about chemicals/odours/moisture 
permeating the bag (in or out)?  Would it be useful to create an anoxic 
environment?

If storage is temporary, you will have few worries, but if it is a long term 
application, it would be worthwhile to investigate barrier films and heat 
sealers. 

js

Jerry Shiner
Keepsafe Microclimate Systems
800 683 4696  www.keepsafe.ca i...@keepsafe.ca Specializing in the design, 
procurement, and installation of environmental control systems in museums and 
archives.
 
 


-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Neil 
Carey
Sent: Monday, August 27, 2012 4:36 PM
To: pestlist@museumpests.net
Subject: [pestlist] Plastic containers


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Amber.

Thanks for your post re: Lock&Lock plastic containers. I looked at both your 
Amazon link and at their own website. They seem ideal for small items, but I 
could not find any large enough for larger objects. We have many pieces that 
barely fit into a 24" x 36" polyethylene bag, and some Kpelle masks with 
feathered coifs approach 40". The larger pieces can always be handled 
individually, but I wonder if there are 18-24" x 30-36" containers similar to 
the L&L that could accommodate the bulk of our collection. Having transparency, 
a good seal, being nestable and stackable with enough capacity seems ideal.

Neil



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[pestlist] RE: Use of plastic tubs for fumigation and pest protection??

[Anderson, Gretchen]

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Hi Bonnie,
Yes, If I am understanding you properly, the tightly sealed tubs should provide 
ongoing pest protection.  If you are not seeing any condensation then you are 
good.  It is a good use for the tubs.  I have used a similar materials  for 
microclimates for archaeological metals and found them to be very tight 
maintain a low RH for up to 5 years. (off subject - sorry).

Gretchen Anderson
Conservation, Carnegie Museum of Natural History

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Bonnie 
Amos
Sent: Monday, August 27, 2012 12:29 PM
To: pestlist@museumpests.net
Subject: [pestlist] Use of plastic tubs for fumigation and pest protection??

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Hi all,
We have been fumigating herbarium specimens by first stacking the specimens in 
a plastic tub (usually Walmart specials), closing the tub with its somewhat 
secure lid, then putting the filled tub in a heavy gauge plastic bag which is 
tightly closed and then the entire unit is placed into the ultracold. We allow 
the 24 hour thaw and have not had any problems with internal condensation. I 
like using the tubs because they provide rigid support and protection and they 
make it easier to handle, stack, and transport specimens. Here is the part I am 
not so sure about. After thawing, the tubs are moved into the pest-free 
herbarium and some specimens remain in the tubs for several weeks before 
processing (we are a regional university and depend on part-time student 
helpers). My question...are the closed tubs providing pest protection to the 
specimens?
Thanks,
Bonnie Amos, Ph.D.
Professor and Curator, Angelo State Natural History Collections, Herbarium
Angelo State University
ASU Station #10890
Department of Biology
San Angelo, TX 76909

(325) 486-6656
bonnie.a...@angelo.edu
Member, Texas Tech University System

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RE: [pestlist] heat treatment

[Anderson, Gretchen]

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Barbara - Check Tom Strang's IPM article on CCI Website - in the 10 agents 
section.  He has done a ton of research on it.  For objects in general - use 
the same methodology as we do in freezing - Double bag - that will maintain the 
equal moisture content of the object. Heating can be used safely for many 
objects as long as none of the materials melt or deform at 130 degrees. 

Gretchen Anderson

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of 
aa...@mindspring.com [aa...@mindspring.com]
Sent: Sunday, August 26, 2012 3:32 PM
To: pestlist@museumpests.net
Subject: [pestlist] heat treatment

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For some reason, the "heat" part of the treatment section of Museumpests.net 
doesn't have any text attached.  Can someone give me the rule-of-thumb 
requirements for heat treatment of infestations?

Many thanks.
Barbara Appelbaum


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RE: [pestlist] Defrosting

[Anderson, Gretchen]

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Agreed - that is what I have done for the most part. Both at Science Museum of 
Minnesota and at the Carnegie Museum of Natural History.  While it is usually 
recommended to stage the thaw through a refrigerator it is often not practical! 
 I think the most important step is to keep the objects wrapped until they are 
up to room temperature. I have never seen any damage while doing this.  

-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Kaplan, 
Emily
Sent: Friday, August 24, 2012 12:01 PM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Defrosting

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Hi all,
We routinely treat collections with low temperature at minus 30 degrees C and 
have had no problems with unloading the freezer and allowing the collections 
items to come to room temperature - 24 hours minimum to be on the safe side (we 
do not use a refrigeration step.) Just make sure you keep them wrapped until 
they come to room temp so any condensation occurs on the wrapping not the 
object.
Best,
Emily


Emily Kaplan
Conservator
Smithsonian National Museum of the American Indian Cultural Resources Center
4220 Silver Hill Rd Suitland MD 20746
301.238.1418 fax 301.238.3201
kapl...@si.edu


-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Neil 
Carey
Sent: Friday, August 24, 2012 11:19 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Defrosting

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Hi again,

So then there is a need to bring objects back to room temp slowly. 

The rented freezer is getting picked up on Monday, so I'll need to unpack it on 
Sunday. There is a thermostat on it. I've had it cranked down all the way which 
has yielded -30c. I can gradually warm it up over time while keeping an eye on 
the temp. 

So, my question is, over how long a period is "Allow them to come up to the 
ambient temperature slowly?" 5 hours? 24 hours?

Neil

On Aug 24, 2012, at 10:40 AM, Anderson, Gretchen wrote:

> This is a message from the Museumpests List.
> To post to this list send it as an email to pestlist@museumpests.net 
> To unsubscribe please look at the footer of this email.
> ---
> Hi Neil.
> When you remove your package from the freezer, it is best to allow it come up 
> to ambient temperature as slowly as possible.  This reduces the thermal shock 
> to the object. Ideally the object should be placed in a refrigerator until it 
> is thawed then move it to the room.  I realize that this does not always 
> happen - it depends on your facilities. But the goal should be to bring the 
> objects up to room temperature as slowly as is feasible.   
> 
> You are creating a micro-environment to protect the item. If you have placed 
> your objects in a double layer well sealed plastic you will not have a 
> problem with condensation or see any evidence of  localized relative humidity 
> on the piece when you remove it from the freezer.  Allow them to come up to 
> the ambient temperature slowly and when they are completely acclimated you 
> can remove them from the plastic.  You will not have a mold problem. 
> 
> It is a good idea to examine the object and maintain quarantine until you are 
> sure that the object is pest free. One way to do this is to keep it in a bag 
> for a while (length of time will depend on the life cycle of the pest 
> species). 
> 
> Anoxic is another topic.  With this method you are actively removing the 
> oxygen from the bag or space around the object. There are advantages to this 
> method, and there are some things that are best stored and displayed in an 
> anoxic environment.  But that is more complicated.  For use of anoxia in pest 
> control , take a look at the various strategies on Museum Pest Net 
> http://www.museumpests.net/treatment.asp  There is also a fact sheet on 
> bagging for isolation. 
> 
> Good luck! 
> Gretchen
> 
> 
> 
> -Original Message-
> From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf 
> Of Neil Carey
> Sent: Thursday, August 23, 2012 8:50 PM
> To: pestlist@museumpests.net
> Subject: [pestlist] Defrosting
> 
> This is a me

RE: [pestlist] Defrosting

[Anderson, Gretchen]

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Hi Neil.
When you remove your package from the freezer, it is best to allow it come up 
to ambient temperature as slowly as possible.  This reduces the thermal shock 
to the object. Ideally the object should be placed in a refrigerator until it 
is thawed then move it to the room.  I realize that this does not always happen 
- it depends on your facilities. But the goal should be to bring the objects up 
to room temperature as slowly as is feasible.   

You are creating a micro-environment to protect the item. If you have placed 
your objects in a double layer well sealed plastic you will not have a problem 
with condensation or see any evidence of  localized relative humidity on the 
piece when you remove it from the freezer.  Allow them to come up to the 
ambient temperature slowly and when they are completely acclimated you can 
remove them from the plastic.  You will not have a mold problem. 

It is a good idea to examine the object and maintain quarantine until you are 
sure that the object is pest free. One way to do this is to keep it in a bag 
for a while (length of time will depend on the life cycle of the pest species). 

Anoxic is another topic.  With this method you are actively removing the oxygen 
from the bag or space around the object. There are advantages to this method, 
and there are some things that are best stored and displayed in an anoxic 
environment.  But that is more complicated.  For use of anoxia in pest control 
, take a look at the various strategies on Museum Pest Net 
http://www.museumpests.net/treatment.asp  There is also a fact sheet on bagging 
for isolation. 

Good luck! 
Gretchen 



-Original Message-
From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Neil 
Carey
Sent: Thursday, August 23, 2012 8:50 PM
To: pestlist@museumpests.net
Subject: [pestlist] Defrosting

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---
Since implementing IPM a month ago, we've been successfully freezing our 
ethnographic collection of mostly wooden African pieces, many with textile, 
feather, or metal attachments, at -30c. Thanks to the group for all their 
valuable input.

However, I don't recall any discussion about controlling the defrost cycle. Are 
there any special considerations? Off hand, I can think of the possibility of 
mold growth if an object is kept double wrapped in polyethylene after 
defrosting, despite being wrapped in tissue paper. Am I overly paranoid? Just 
how long should a controlled defrost take? Must the object be removed 
immediately? If not, how long can it go heat sealed in bags? It's not like 
anoxic treatment where a piece can just be kept inside its polypropylene bag 
forever. Any input?

Neil Carey

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RE: [pestlist] Freezing Collections

[Anderson, Gretchen]

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Hi all,

It sounds like this is a freezer that includes an automatic defrost unit.  
Recommendations are for a freezer that maintains the critical kill temperature 
(about -4 C F; -18 degrees C) at a constant rate - not fluctuating.  I usually 
aim for about -20 deg. C to be safe. With warmer temperatures and the defrost 
cycle the freezing process will take longer and there is a greater chance that 
the insects will develop the "anti-freeze" and the kill be less affective.

Good luck
Gretchen

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of derya 
gölpinar
Sent: Thursday, August 23, 2012 8:55 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Freezing Collections

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Hi Kelly,
This is what is says on the museumpests.net website under low temperature 
treatment (in the "solutions" section)
http://www.museumpests.net/cms/genericpdfmaker.asp?id=3&file=treatmentfacts
"Whichever kind (of freezer) is used, a good rule of thumb is that it should be 
capable of maintaining minus 20 degrees F (minus 29 degrees C). Ultimately the 
appropriate exposure period for insect eradication will depend on both the 
minimum operating temperature of  the freezer as well as the type of insect.
A freezer that maintains this temperature will sufficiently lower the materials 
to the freezing point within four hours, which kills adult insects as well as 
their eggs. If the temperature drop takes much longer, some varieties of insect 
are capable of producing an 'anti-freeze' that allows them to survive freezing. 
With wood pests such as powderpost beetles, a second treatment may be necessary 
to insure complete kill. This is particularly important forlarge wooden 
objects, where temperature change may take longer then four hours to penetrate 
to the core."

Since I am familiar with the -20F rule of thumb, I would also be curious to 
hear others thoughts on using a freezer at -4 to +7F range. I once did a three 
day freeze treatment using a freezer that only went down to -18F and it worked 
fine, however the piece being treated was a small leather shoe - nothing large 
:)
best,
Derya

From: k...@uw.edu
To: pestlist@museumpests.net
Subject: RE: [pestlist] Freezing Collections
Date: Tue, 21 Aug 2012 21:59:12 +

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Hi Derya,

The collections are already in the freezer. The freezers at the facility range 
in temperature from +7 degrees Fahrenheit to -4 degrees Fahrenheit. They 
couldn't tell me on the spot which freezer the collection is in. I can get the 
exact temperature tomorrow if need be. Does anyone have any thoughts about this 
range, -4 to +7 degrees Fahrenheit?

Thanks,
Kelly

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of derya 
gölpinar
Sent: Friday, August 17, 2012 2:37 PM
To: pestlist@museumpests.net
Cc: pestlist@museumpests.net
Subject: Re: [pestlist] Freezing Collections

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Hi Kelly, How cold were you planning to freeze the materials?
-Derya

On Aug 17, 2012, at 5:24 PM, "Kelly  Meyers" mailto:k...@uw.edu>> 
wrote:
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I have approximately 65 boxes (varying in size from approximately 1-1.5 cubic 
feet) of archaeological fauna, sediment and radiocarbon samples that we are 
freezing as a preventative measure due to poor storage and transportation 
conditions. The collections are palletized with 9 boxes on each row, 4 rows 
high. It would save a fair amount of work and coordination if I could remove 
the pallets from the freezer after 12 days rather than the normal 14. Can 
anyone comment on the efficacy of freezing for 12 days without a thaw and 
refreeze? The boxes are packed fairly tightly, but most of it is bone in paper 
or plastic bags so I think the temperature will drop pretty q

RE: [pestlist] pestlist question

[Anderson, Gretchen]

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Hi Rosa,

Both methods work well when done correctly.  My preference is always for 
freezing (or heating) because it takes less time to achieve results than anoxia 
and it is easier to set up.  Follow the guidelines for freezing on 
MuseumPests.net and you should have no problems.  When the object is well 
sealed in a double bag there will be very little fluctuation in the RH in the 
immediate environment. If you are concerned you can place a sorbent of some 
kind, (Silica gel etc) in the bag.  Try it on scrap cardboard if you are 
concerned.  Freezing has been used successfully to mitigate pest issues on 
books and other paper products for many years - it is very successful.

Good luck!
Gretchen Anderson
Conservator
Carnegie Museum of Natural History

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of Alex Roach 
[alro...@bigpond.net.au]
Sent: Monday, August 06, 2012 3:22 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] pestlist question

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Hi Rosa

Freezing will do the job fine, as long as the piece is bagged and allowed to 
thaw post freezing (to prevent damage from condensation). There is a risk of 
damage to any binders if present (i.e. glue/paste), so if that is the case I'd 
use low oxygen.

Best wishes
Alex



On 06/08/2012, at 1:24 PM, Rosa Lowinger wrote:

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I have a question about fumigating a work of art made out of corrugated 
cardboard.  The piece is a chair by architect Frank Gehry and it has 
silverfish.  Freezing?  Anoxia?  Is one better than the other for these 
critters?  I would think freezing might be damaging to the cardboard but I'm 
not sure.

Thanks for any help,

Rosa Lowinger, Principal and Chief Conservator
Rosa Lowinger & Associates - Conservation of Art + Architecture
Los Angeles • Miami
 305.573.7011  323.377.8425
www.rlaconservation.com



On Sat, Aug 4, 2012 at 11:55 AM, 
mailto:karin.vonler...@prevart.ch>> wrote:
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Sehr geehrte Damen und Herren,

Der Adressat ihrer e-mail ist in der Woche vom 28. Juli bis 5. August 2012 
nicht erreichbar.
E-mails werden nicht weitergeleitet und nicht beantwortet. E-mails werden ab 
dem 6. August wieder beantwortet.

Mit bestem Dank für ihr Verständnis und freundlichem Gruss
Prevart GmbH




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RE: [pestlist] Freezing a large donation?

[Anderson, Gretchen]

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Hi Scott,
You have come to the right place! Many of us on this list  have used freezing 
massive numbers of items to manage pest infestations.  At my former institution 
we processed and entire collection of mammal and bird specimens through our 
walk-in freezer, successfully eliminating known dermestid and moth infestation 
priro to moving the collection to a new storage facility - as far as I know 
storage is pest free 12 years later.  Yes it is time consuming but it works 
with no damage to the collection.

Your basic proposal is the best and most practical method - However,  as Hugh 
mentions, you need to learn the specifics of freezing prior to attempting the 
treatment.  Double bagging is the best method to protect the collection- done 
properly this will eliminate RH fluctuations and condensation on the objects. I 
recommend that you attain a temperature of at least -18 deg. C or lower - for 
the duration of the freeze period.  The time is the most difficult thing to 
determine- especially with dense material.  I would do no less than 2 weeks - 
but you need to make sure that the core of your material has reached the 
critical temperature.  For further information go to 
http://www.museumpests.net/- there are articles posted under the treatment 
section that will help you better understand the process and provide 
parameters.  You might also read the article by Tom Strang on the Canadian 
Conservation institute web site about integrated pest management.  
http://www.cci-icc.gc.ca/caringfor-prendresoindes/articles/10agents/chap06-eng.aspx.

This method does work.
good luck
Gretchen Anderson
Conservator
Carnegie Museum of Natural History
anders...@clarnegiemnh.org

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of Hugh P. Glover 
[hglo...@williamstownart.org]
Sent: Thursday, July 19, 2012 8:30 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Freezing a large donation?

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You propose an essentially reasonable  precaution, but what pests, and what 
freeze temperatures?  You came to the right place though. Hugh Glover (WACC)

On Jul 19, 2012 6:37 PM, "Reinke, Scott" 
mailto:s.rei...@miami.edu>> wrote:
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Hello,

I was referred to this list as a possible resource to help answer my question.

Does anyone have experience accepting large donations that may be infested with 
pests? We are in the process of planning the move of 700 + linear feet, of 
primarily paper-based materials, from a building that has not had power for 
years. I have concerns about integrating these materials with existing 
collections. My first thought was double-bagging every box and dropping them at 
a commercial freezer for a week before we receive the materials. Does anyone 
have other suggestions that may not be so labor intensive?

Any suggestions would greatly appreciated.

Thanks,
Scott

Scott David Reinke
Preservation Administrator
University of Miami Libraries
1300 Memorial Drive
Coral Gables, FL  33124-0320

305.284.1844 (office)
305.284.2661 (lab)
305.284.4721 (fax)
s.rei...@miami.edu


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RE: [pestlist] Help with ID

[Anderson, Gretchen]

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Hi Tom -
I recently went through the precise scenario that you described - leak in roof 
- wall, serious infestation of plaster beetles.  The building has been 
repaired.  The repairs to the wall the exterior wall were made about last Fall. 
There were still live plaster beetles when we made repairs to the HVAC and 
cleaned the interior of the  inside the case.  Since that time  I have not 
noticed any activity in the case.  It is a large case (room actually) built 
(literally boat sized - holds a 3,000 (+/-) year old Egyptian boat) and the 
water damage was in the far back corner.  The case is difficult get into but I 
will try to get in next week and let you know what is going on at this point.

Gretchen

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
bugma...@aol.com
Sent: Wednesday, July 11, 2012 8:07 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Help with ID

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Group -

Here's a question for those of you who may have had an occasion to battle a 
heavy infestation of plaster beetles:  Let's say there's a roof leak causing a 
mold bloom, hence an uprising of plaster beetles.  Then the leak is repaired; 
the mold no longer grows, but a billion spores are left behind.  Can plaster 
beetles still survive and reproduce in the dried out mold by the larvae eating 
the spores and mycelia?  Or once the mold is dried out, is that the end of the 
reproduction and slowly the adults will die off?

Any thoughts?

Tom Parker

-Original Message-
From: Jonathan Brown 
To: pestlist 
Sent: Wed, Jul 11, 2012 7:41 pm
Subject: Re: [pestlist] Help with ID
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It's a Latridiid, and I concur on Adistemia. Depending on the trap location, 
two may not be indicative of an infestation. These guys don't need much to eat 
and can hang around a long time after the conditions that triggered the initial 
mold growth are remediated.

JP Brown
Regenstein Conservator for Pacific Anthropology
The Field Museum
1400 S Lake Shore Dr
Chicago, IL 60615
t: +1 (312) 665-7879

On Jul 11, 2012, at 4:20 PM, Tony Irwin 
mailto:tony.ir...@btinternet.com>> wrote:
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Adistemia watsoni - one of the Plaster Beetles (Latridiidae). It is sometimes 
known as the Household Fungus Beetle.
So you have mould somewhere. Getting rid of the mould will get rid of the 
beetle infestation.
Tony Irwin

Dr A.G.Irwin,
47 The Avenues
Norwich
Norfolk NR2 3PH

Tel: 01603 453524
Mobile: 07880707834
E-mail: tony.ir...@btinternet.com

-Original Message-
From: ad...@museumpests.net 
[mailto:ad...@museumpests.net]On Behalf Of Denise 
Migdail
Sent: 11 July 2012 21:32
To: pestlist@museumpests.net
Subject: [pestlist] Help with ID
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Tiny orange insect (beetle?),  Total length is a little less than 2 mm.
We have found several of these small insects in different blunder traps located 
on our basement level.  Any help in identifying them would be most appreciated -

Thank you-

Denise


Denise Migdail
Textile Conservator
Asian Art Museum
200 Larkin Street
San Francisco, CA  94102


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RE: [pestlist] Floor covering in Directors Office

[Anderson, Gretchen]

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Dee, you are correct.  In addition any of the floor coverings mentioned in the 
previous posts will capture and hold dust (in all of its components) eventually 
providing a food source for other pests (including mold).  Since Ingrid is 
talking about the director’s office there will be less traffic and hopefully 
good housekeeping. There is a legitimate need for the office to be comfortable 
and aesthetically pleasing so, in this situation the synthetic or sisal would 
probably be best.  Just make sure that there is proper cleaning – including 
under the floor covering.

That brings up a question I have – how would a sisal rug get cleaned?  Is 
vacuuming sufficient – or does it have to be taken out and beaten? Because of 
the nature and previous discussion  –I would be hesitant to damp clean.  Just 
wondering – this affects the IPM question.

Gretchen
Gretchen Anderson
Conservator
Carnegie Museum of Natural History
Pittsburgh, PA

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Dee 
Stubbs-Lee
Sent: Thursday, May 24, 2012 7:47 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Floor covering in Directors Office

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I can vouch for this – many of my museum’s collections storage areas are 
carpeted (a situation I inherited rather than chose). Despite having 
desperately low RH in the building most of the winter, we still often see 
silverfish in the carpeted rooms – a moldy microclimate under the carpets, I’m 
guessing.

Dee


Dee A. Stubbs-Lee, MA, CAPC
Conservator
The New Brunswick Museum
Saint John, New Brunswick
Canada
E2K 1E5
tel: (506) 643-2341
www.nbm-mnb.ca



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
Margaret Geiss-Mooney
Sent: Thursday, May 24, 2012 1:12 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Floor covering in Directors Office

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Good evening, PestList’lers – I also point out that a large expanse of any 
floor covering made from a natural fibre, whether sisal or wool, cotton, jute, 
etc., will also absorb and hold a lot more moisture out of the environment 
where it is installed than a floor covering made from one of the synthetic 
fibres (i.e. acrylic, nylon, etc.). So if your floors do not have a vapor 
barrier properly installed, the floor covering will act like a giant sponge, 
sucking up moisture from the floor/ground. If your building does not have the 
relative humidity controlled, the natural fibre floor covering will make it 
even more complicated to control. Mould/mildew spores will love it and flourish 
with abandon….ugh…especially on the side in direct contact with the floor and 
away from the light (mould/mildew is considered a ‘pest’, right?).

Any finish applied to a floor covering, whether fire retardant or stain 
repellency, will be rubbed off as the floor covering is walked on/have stuff 
dragged across it. Meaning it would have to be reapplied periodically. So the 
carrier fluid would be contaminating the space again, whether water (raising 
the RH in the environment) or some other fluid which would off-gas in to the 
space as it dries.

Feel free to contact me off-list if you need further clarification.
Regards,
Meg
.   _  _  _  _  _  _  _   _ _   ___
Margaret E. Geiss-Mooney
Textile/Costume Conservator &
Collections Management Consultant
Professional Associate - AIC
707-763-8694
mgmoo...@moonware.net


I am writing about the choice of floor covering requested by the Director's 
Office at our art museum.  They are interested in installing either Sisal or 
Wool sisal in the Directors office.  There will also be two or three 
accessioned paintings exhibited in this space as well.  I am concerned about 
the tastiness of both of these choices (sisal and wool sisal) to potential 
critters.  The Director's office is in a different corridor than the art 
collections however I am concerned about creating a potentially amiable 
environment for pests in general within the museum.  What do people think?  
Should I continue to advocate for synthetic flooring options which have 
heretofore not been of interest unfortunately?  I do not believe that they will 
be using a foam pad under the rug which is a good thing to a

RE: [pestlist] Anoxic treatment

[Anderson, Gretchen]

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Dear Sir,

To start with you should take a look at the resources page of the Museum Pest 
web site (http://www.museumpests.net/ ).  That will provide you with a great 
deal of information. The second site I recommend you take a look at is the 
Canadian Conservation Institute's Pest article 
http://www.cci-icc.gc.ca/caringfor-prendresoindes/articles/10agents/chap06-eng.aspx.


Good luck
Gretchen Anderson
Conservator
Carnegie Museum of Natural History
4400 Forbes Ave
Pittsburgh PA 15202
anders...@carnegiemnh.org


From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of ???
Sent: Tuesday, March 27, 2012 8:50 PM
To: pestlist@museumpests.net
Subject: [pestlist] Anoxic treatment

Dear all

I am J.S. OH of The National Folk Museu of Korea and reponsible for IPM of The 
National Folk Museum of Korea.
Now I am investigating the anoxic treatment  of museums around the world.
Does anyone have any information of anoxic treatment(nitrogen or argon, rigid 
wall chamber, bubble etc) of the museums around the world.

Sincerely yours

J.S. OH

Conservation Laboratory
The National Folk Museum of Korea
110-820
1-1 Seojong-Ro Jongro-Gu Seoul
Republic of Korea
Tel 82 2 3704 3276
Fax 82 2 3704 3273
Mail kcomm...@yahoo.co.kr


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[pestlist] RE: Help with identification

[Anderson, Gretchen]

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Amber - it is hard to tell from the photo  but it looks like a female 
Thylodrias contractus (Odd Beetle).   It is a museum pest  - a dermestid. I 
suspect you have found them before - probably mostly as the larva form.  They 
are very common in museums. Could you send it over to me and I will take a look 
to verify - or I can stop by later in the week.

(clever way to photograph it)

Gretchen Anderson
Conservator
Carnegie Museum of Natural History

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of Morgan, Amber 
[morg...@warhol.org]
Sent: Monday, March 12, 2012 11:37 AM
To: pestlist@museumpests.net
Subject: [pestlist] Help with identification

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Apologies for the poor-quality images.  I’m hoping there’s enough info there to 
get a basic identification on this insect.  Is it something dangerous?  Or 
something that just hitched a ride in on someone’s clothes?

Thanks,
Amber

the warhol:
Amber E. Morgan
Associate Registrar
117 Sandusky Street
Pittsburgh, PA 15212
T 412.237.8306
F 412.237.8340
E morg...@warhol.org
W www.warhol.org
The Andy Warhol Museum
One of the four Carnegie Museums of Pittsburgh
Email newsletter http://members.carnegiemuseums.org/email
Membership http://members.carnegiemuseums.org/SupportCMP



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or entities other than the intended recipient is prohibited. If you received 
this in error, please contact the sender and delete the material from any 
system and destroy any copies. Any views expressed in this message are those of 
the individual sender.   ­­
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this in error, please contact the sender and delete the material from any 
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of the individual sender.


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RE: [pestlist] Freezer Trucks

[Anderson, Gretchen]

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Dana - Yes, extending the length of time helps a great deal.  Thermal control 
(as per Tom Strang, Mary Lou Florian and others) has proved to be very 
successful.  Most of my personal experience is with natural history collections 
- not with archives. These are not nearly as dense as archives. It will take 
time to get the internal temperature of the boxes down to critical 
temperatures.  Even with the collections that I have dealt with we often use 
the rule of thumb of 2 weeks in the freezer - just in case (It is difficult to 
monitor the interior of many objects and specimens to verify the temperature). 
And we freeze once then monitor - less stress on our specimens than the double 
freeze method.  We always double bag the specimens.  This significantly reduces 
moisture loss.  The initial shock to the artifact is the freezing process.  The 
faster the freeze the better.  But once the object is frozen it can stay there 
for what ever length of time you want.  The next shock is when you remove it 
from the freezer. 

At my former museum we processed our entire study skin and osteological 
collection in this manner to mitigate a known dermestid and moth infestation 
prior moving it to a new storage facility.  That was 12 years ago.  The storage 
area is still pest free - nothing survived with no damage to the specimens. It 
took time because we were using a walk in freezer and could only do so much at 
a time. 

You can also reduce the temperature more - we generally aim for -20 deg. C., 
but colder is ok. (my entomologist uses much colder for a shorter period of 
time due to the situation in the lab. He has tested this extensively and it 
works.  Remember pinned bugs are not at all densely packed  - they freeze 
immediately with in minutes).

As Tom mentions, different species have different tolerances to cold - but the 
method works!  I refer you to Tom Strangs work at CCI. He has also published 
critical temperatures for specific pest species. 

Good Luck!
gretchen

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of dana senge 
[dkse...@gmail.com]
Sent: Sunday, March 11, 2012 12:26 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Freezer Trucks

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Thanks Gretchen-

I am glad to read that you feel the method works-  have you found
extending the freezing period is what makes this successful?

Dana

On Sat, Mar 10, 2012 at 8:20 PM, Anderson, Gretchen
 wrote:
> This is a message from the Museumpests List.
> To post to this list send it as an email to pestlist@museumpests.net
> To unsubscribe please look at the footer of this email.
> ---
> Dana -
>
> In addition you need to realize that boxes of archives are very dense - and
> that paper is very good insulator. In fact, shredded paper is used to
> insulate houses in northern climates.  Given that, it is not surprising that
> it took time to reach the the desired temperature.  Be patient - the method
> works.
>
> Gretchen Anderson
> Conservator
> Carnegie  Museum of Natural History
> 
> From: ad...@museumpests.net [ad...@museumpests.net] on behalf of
> bugma...@aol.com [bugma...@aol.com]
> Sent: Saturday, March 10, 2012 8:58 PM
> To: pestlist@museumpests.net
> Subject: Re: [pestlist] Freezer Trucks
>
> This is a message from the Museumpests List.
> To post to this list send it as an email to pestlist@museumpests.net
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> ---
> Dana -
>
> First of all, the temperature does not have to reach -20F in 4 hours.  It
> should reach 32F in 4 hours.  That's sufficient.  The reason you use a truck
> capable of maintaining -20F, is it will reach the desired 32F in 4 hours.
> Once the liquid in adults, larvae, and eggs reaches a freezing temperature,
> ice particles form and destroy the cellular structure of the living
> organisms.  Unless you're dealing with "book worms", which I doubt you are
> with archival records, any insects found in these materials will certainly
> be killed.  When freezing anything, you're trying to beat insects from
> forming natural defenses to freezing.  I think your process worked fine.
> Have you found any live insects?
>
> I have had plenty of sucessful freezing episodes with freezer truc

RE: [pestlist] Freezer Trucks

[Anderson, Gretchen]

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Dana -

In addition you need to realize that boxes of archives are very dense - and 
that paper is very good insulator. In fact, shredded paper is used to insulate 
houses in northern climates.  Given that, it is not surprising that it took 
time to reach the the desired temperature.  Be patient - the method works.

Gretchen Anderson
Conservator
Carnegie  Museum of Natural History

From: ad...@museumpests.net [ad...@museumpests.net] on behalf of 
bugma...@aol.com [bugma...@aol.com]
Sent: Saturday, March 10, 2012 8:58 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Freezer Trucks

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Dana -

First of all, the temperature does not have to reach -20F in 4 hours.  It 
should reach 32F in 4 hours.  That's sufficient.  The reason you use a truck 
capable of maintaining -20F, is it will reach the desired 32F in 4 hours.  Once 
the liquid in adults, larvae, and eggs reaches a freezing temperature, ice 
particles form and destroy the cellular structure of the living organisms.  
Unless you're dealing with "book worms", which I doubt you are with archival 
records, any insects found in these materials will certainly be killed.  When 
freezing anything, you're trying to beat insects from forming natural defenses 
to freezing.  I think your process worked fine.  Have you found any live 
insects?

I have had plenty of sucessful freezing episodes with freezer trucks, 
containers, and warehouses.

Tom Parker


-Original Message-
From: dana senge 
To: pestlist 
Sent: Sat, Mar 10, 2012 8:41 pm
Subject: [pestlist] Freezer Trucks


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We recently tried using a freezer truck to process a large number of
boxes of archives.  Record boxes were stacked in rows with 12" gaps
between the rows to allow for air circulation.  We placed a datalogger
in the center of one of the boxes of archive materials (in the center
of the truck) and another outside the boxes to measure the temperature
of the air in the truck box.  The results were surprising.

We had been informed that the truck would go down to -20 degrees F in
4 hours.  Our data loggers showed that it took 10 hours for the air in
the truck to go from 44 degrees F to -15 degrees F, and the
temperature inside one of the record boxes took ~96 hours to drop from
70 degrees to -15 degrees.  (The boxes had been in a 72 degree
environment before being placed in the truck box).  It appears that
the starting temperature of the boxes of paper was more difficult to
reduce than I expected.  And the truck never achieved the desired
temperature.

We are very disappointed in these initial results and are trying to
figure out if there is a different  strategy for using a freezer
truck, or if this is just not feasible for freezing densely packed
materials, such as paper packed in a record box.  We are discussing
packing boxes half full and packing the truck to allow for even more
air circulation.  But it seems that getting to the goal of -20 degrees
F in 4 hours may not be feasible.

Does anyone have any positive experiences working with a freezer truck
for processing a large quantity of materials?  Especially dense
materials such as wood or boxes of paper?


Thanks,

Dana Senge
Assistant Conservator
National Park Service
Intermountain Region Museum Services Program
Tucson, AZ 85745
520-791-6432
dana_se...@nps.gov


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RE: [pestlist] pests in HVAC filters

[Anderson, Gretchen]

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Hi Derya,

Like Patty I am a little daunted at the prospect of checking all of our filters 
(big complicated building).  At a previous institution I worked we did check 
the bottom of the outside air intakes - this only showed what was being drawn 
into the stack (and building). We discussed putting screens on the intakes, but 
I am not sure that happened.  It might have constricted the air flow - the 
discussion took place 10 years ago, so I am a little vague on the results. If 
your filters are in place and your HVAC is in good shape (no unanticipated 
holes in the ducts) the filters should be blocking egress.  If the filters are 
changed on a schedule then there should be little organic matter to become the 
source of an infestation.

Our main problem is with electrical and plumbing traces. This is an old 
building, with a lot of unidentified conduits to be used as insect and rodent 
highways throughout.  There are also plenty of holes in the building.  Using a 
proactive pest management company has made a significant difference in our 
insect levels.  One of the things that the technician does is identify hotspots 
and breeding grounds such as standing water at the bottom of elevator shafts or 
in the attics.  By addressing these issues and keeping in close contact with 
our Facilities staff on the repairs to the building has made a huge difference 
in reduction of pests and in understanding why the pests are present.

I sent this discussion to our entomologist and will post his reply.

Gretchen Anderson
Conservator
Carnegie Museum of Pittsburgh


From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
Silence, Patricia
Sent: Thursday, February 09, 2012 8:58 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] pests in HVAC filters

Hi Derya,
We have been advised to do this, and find it a bit daunting, as well. The 
compelling particulars included finding adult powder-post type critters, who 
fly away as they emerge . Given a large collection of architectural fragments 
inspection is nearly impossible to find new-looking holes. We are skeptical 
that the adults would come across a stumble trap. I don't think Ryan has found 
a lot of time to do this and our filter-changing schedule covers dozens of 
sites - and is managed by a team that doesn't have a simple or direct way of 
telling us that dirty filters are ready to look at and then get hauled to the 
dumpster - clearly we don't have a place to leave them sitting around.
I would love to get an entomologist's thoughts on this.
Patty

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of derya 
gölpinar
Sent: Wednesday, February 08, 2012 3:56 PM
To: pestlist@museumpests.net
Subject: [pestlist] pests in HVAC filters

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Hi Everybody, I was wondering if any of you check your HVAC filters for pests. 
The idea has come up - when our pest control vendor mentioned that insects can 
travel through HVAC systems and get from one part of the museum to another. 
Does checking the filters give us a random sample of what might be around the 
museum? Or is it overkill to look at these? Have any of you actually done this? 
Our facilities staff gave me a used filter to look at today and it is pretty 
large, I couldn't really think of a practical way to check them for insects 
without having it take up a lot of my time.
best,
Derya
Assistant Registrar
Rubin Museum of Art

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Re: [pestlist] LinkedIn discussion

[Anderson, Gretchen]

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Colin,

Unfortunately, I do not have access to my linkedin account at this time, but 
will join the conversation as soon as I can.

I agree with Tom - blunder traps are very effective in identifying the species 
that are present in a museum - both pest and non pest species. They are also an 
inexpesive way to start determining population density and distribution. These 
are the first steps that need to be taken with IPM.

Pheremone traps, when used properly, are good for focusing in on specific 
pests. Pheremones target specific species and not all museum pests have had 
their pheremones specifically distilled. We are not the primary market. In 
addition, pheremones attract only the male of the species.

Blunder traps and pheremone traps are useful tools for monitoring pests only. 
Not for eliminating pests.

Hope this helps.

Gretchen Anderson
Conservator
Carnegie Museum of Natural History

From: colin smith [mailto:inhol...@btinternet.com]
Sent: Tuesday, January 03, 2012 02:09 PM
To: pestlist@museumpests.net 
Subject: Re: [pestlist] LinkedIn discussion

Sorry Tom, I have to disagree. What you describe is what you say it is; A 
blunder trap. There is no doubt that the advances is pheromone technology has 
enabled the development very effective and accurate monitors, capable of 
detecting very small or new infestations. Blunder traps simply demonstrate how 
severe an infestation has become. For insects and even mice to be caught this 
way indicates severe infestations.  Not something of much use when you consider 
many museums following good IPM protocols regard one moth as a serious 
infestation!

I’m not ‘re-inventing the wheel’ but rather trying to develop something which 
may bring us into the 21st century. A trap with a number of pheromone lures 
which will attract insects even if there are very few around; at a fair and 
reasonable price.
I can well understand museums using ineffective blunder traps, particularly 
when we all have to control costs. What I am trying to develop and offer is 
something in a similar price range which actually works!

All the best

Colin
From: bugma...@aol.com
Sent: Tuesday, January 03, 2012 6:37 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] LinkedIn discussion
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Barbara -

As far as the museum community goes, flat, cardboard glueboards, manufactured 
by Atlantic Paste & Glue Co. of Brooklyn, NY or Bell Laboratories in Wisconsin 
and others are the best "multi-functional" insect traps on the market today.  
Even flying insects end up in these "blunder" traps.  Not only can you 
determine the kinds of insects getting caught (indoor or outdoor), you can 
often determine from which direction they're coming.  As an added bonus, mice 
can be caught on the larger ones.  And they're cheap!  Let's not reinvent the 
wheel.

Tom Parker


-Original Message-
From: Appelbaum & Himmelstein 
To: pestlist 
Sent: Tue, Jan 3, 2012 10:58 am
Subject: [pestlist] LinkedIn discussion

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The ICOM members list on LinkedIn is having a discussion about the possibility 
of developing a multi-functional insect trap.  I suggested that they post on 
the pest list as well.  If they don't, those of you who are interested should 
go on to the LinkedIn site to put in your two cents.
Barbara Appelbaum

This is the posting: Monitoring Dear all, I am considering the development of a 
multi functional insect trap / monitor which will trap the most common insects 
in one simple unit. Is there a need for something like 
this?






[X]



[X]



[X]



[X]



[X]



[X]



[X]



[X]
























--






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Re: [pestlist] LinkedIn discussion

[Anderson, Gretchen]

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Agreed!! Unfortunately the museum world is not the primary audience for 
pheremone developement. It would be great if there was a general pheremone for 
the large number of dermestid species out there!

Gretchen

From: Rick Kerschner [mailto:rkersch...@shelburnemuseum.org]
Sent: Tuesday, January 03, 2012 05:07 PM
To: pestlist@museumpests.net 
Subject: RE: [pestlist] LinkedIn discussion

I have been using traps with pheromone attractants for both webbing and case 
making moths and it would be useful to have one to attract both types of moths 
as well as black or varied carpet beetles. Perhaps the cost would be 
prohibitive, but if Colin is interested in pursuing it, I so go for it.
Rick

Richard L. Kerschner
Director of Preservation and Conservation
Shelburne Museum
PO Box 10, Route 7
Shelburne, VT   05482
(802) 985-3348 x3361
rkersch...@shelburnemuseum.org


From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of colin 
smith
Sent: Tuesday, January 03, 2012 2:09 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] LinkedIn discussion

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Sorry Tom, I have to disagree. What you describe is what you say it is; A 
blunder trap. There is no doubt that the advances is pheromone technology has 
enabled the development very effective and accurate monitors, capable of 
detecting very small or new infestations. Blunder traps simply demonstrate how 
severe an infestation has become. For insects and even mice to be caught this 
way indicates severe infestations.  Not something of much use when you consider 
many museums following good IPM protocols regard one moth as a serious 
infestation!

I’m not ‘re-inventing the wheel’ but rather trying to develop something which 
may bring us into the 21st century. A trap with a number of pheromone lures 
which will attract insects even if there are very few around; at a fair and 
reasonable price.
I can well understand museums using ineffective blunder traps, particularly 
when we all have to control costs. What I am trying to develop and offer is 
something in a similar price range which actually works!

All the best

Colin
From: bugma...@aol.com
Sent: Tuesday, January 03, 2012 6:37 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] LinkedIn discussion
This is a message from the Museumpests List.
To post to this list send it as an email to pestlist@museumpests.net
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Barbara -

As far as the museum community goes, flat, cardboard glueboards, manufactured 
by Atlantic Paste & Glue Co. of Brooklyn, NY or Bell Laboratories in Wisconsin 
and others are the best "multi-functional" insect traps on the market today.  
Even flying insects end up in these "blunder" traps.  Not only can you 
determine the kinds of insects getting caught (indoor or outdoor), you can 
often determine from which direction they're coming.  As an added bonus, mice 
can be caught on the larger ones.  And they're cheap!  Let's not reinvent the 
wheel.

Tom Parker


-Original Message-
From: Appelbaum & Himmelstein 
To: pestlist 
Sent: Tue, Jan 3, 2012 10:58 am
Subject: [pestlist] LinkedIn discussion

This is a message from the Museumpests List.
To post to this list send it as an email to 
pestlist@museumpests.net
To unsubscribe please look at the footer of this email.
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The ICOM members list on LinkedIn is having a discussion about the possibility 
of developing a multi-functional insect trap.  I suggested that they post on 
the pest list as well.  If they don't, those of you who are interested should 
go on to the LinkedIn site to put in your two cents.
Barbara Appelbaum

This is the posting: Monitoring Dear all, I am considering the development of a 
multi functional insect trap / monitor which will trap the most common insects 
in one simple unit. Is there a need for something like 
this?






[X]



[X]



[X]



[X]



[X]



[X]



[X]



[X]
























--






-

RE: [pestlist] Webbing Clothes Moths and Gentrol?

[Anderson, Gretchen]

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Then this is a new product that I am unfamiliar.  What is the active
ingredient and how does it work? I have had too many bad experiences
with the old vapona pest strips not to approach this new product with
extreme caution. 

Gretchen Anderson

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of
bugma...@aol.com
Sent: Thursday, November 03, 2011 6:09 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Webbing Clothes Moths and Gentrol?

 

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Nuvan Pro Pest Strips (Vapona resin strips) are labeled for use in
museums and private situations.  They have been on the market for
several years.

 

Tom Parker



-Original Message-
From: Anderson, Gretchen 
To: pestlist 
Sent: Thu, Nov 3, 2011 3:34 pm
Subject: RE: [pestlist] Webbing Clothes Moths and Gentrol?

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Vapona strips are something to be very careful of in a museum context
(or at home).  You must check to make sure that it is allowed for use in
public buildings.

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net
<mailto:ad...@museumpests.net?> ] On Behalf Of bugma...@aol.com
Sent: Thursday, November 03, 2011 12:23 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Webbing Clothes Moths and Gentrol?

 

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An insect growth regulator will not affect adult moths; it may however
affect pupation into an adult, sometimes resulting in malformation of
the adult and/or sterilization.

 

Tom Parker

-Original Message-
From: Jones, Robert (Ryan) (Ryan) 
To: 'pestlist@museumpests.net' 
Sent: Thu, Nov 3, 2011 11:42 am
Subject: RE: [pestlist] Webbing Clothes Moths and Gentrol?

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Thanks for this post - I was just corrected on a misconception I had
between the active ingredients of Gentrol and another similar product
named Precor, which is used for flea sterilization. It had always been
my assumption that Hydroprene was developed for insects that went
through incomplete metamorphosis (like bed bugs and cockroaches), and
that Methoprene was designed for insects that went though complete
metamorphosis (like fleas). Since Dermestids, Clothes moths, and most
other heritage-eaters go through complete metamorphosis, I assumed that
Precor would be the choice to use if working with an IGR in a museum
setting. Interestingly enough, there is a 3rd option out called Nylar
that claims to work for both types of insect growth patterns.

 

As far as the use of the IGR's in the elevator shaft, I agree with Tom
that they will have limited effect on the juvenile population. A
secondary benefit of using the product, however, would be the
sterilization of at least some of the existing adult population. If you
suspect there are a significant number of adult moths left in the
building, the use of IGR's might be justified. I also highly recommend
Alpine. I used it in treating yellow jacket nests this year (which are
historically problematic) and found it to be highly effective. It has a
great one-two punch, and is non-repellant, which will help contain the
infestation rather than scattering it.

From: ad...@museumpests.net [mailto:ad...@museumpests.net
<mailto:ad...@museumpests.net?> ] On Behalf Of bugma...@aol.com
Sent: Wednesday, November 02, 2011 6:58 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Webbing Clothes Moths and Gentrol?

 

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Denise -

 

I think Gentrol would be a waste of chemical.  Gentrol holds larvae in
the larval state; it usually does not prevent eggs from hatching.  The
Alpine Dust would be a good choice a

RE: [pestlist] Webbing Clothes Moths and Gentrol?

[Anderson, Gretchen]

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To unsubscribe please look at the footer of this email.
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Vapona strips are something to be very careful of in a museum context
(or at home).  You must check to make sure that it is allowed for use in
public buildings.

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of
bugma...@aol.com
Sent: Thursday, November 03, 2011 12:23 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Webbing Clothes Moths and Gentrol?

 

This is a message from the Museumpests List.
To post to this list send it as an email to pestlist@museumpests.net
To unsubscribe please look at the footer of this email.
---

An insect growth regulator will not affect adult moths; it may however
affect pupation into an adult, sometimes resulting in malformation of
the adult and/or sterilization.

 

Tom Parker



-Original Message-
From: Jones, Robert (Ryan) (Ryan) 
To: 'pestlist@museumpests.net' 
Sent: Thu, Nov 3, 2011 11:42 am
Subject: RE: [pestlist] Webbing Clothes Moths and Gentrol?

This is a message from the Museumpests List.
To post to this list send it as an email to pestlist@museumpests.net
 
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---

Thanks for this post - I was just corrected on a misconception I had
between the active ingredients of Gentrol and another similar product
named Precor, which is used for flea sterilization. It had always been
my assumption that Hydroprene was developed for insects that went
through incomplete metamorphosis (like bed bugs and cockroaches), and
that Methoprene was designed for insects that went though complete
metamorphosis (like fleas). Since Dermestids, Clothes moths, and most
other heritage-eaters go through complete metamorphosis, I assumed that
Precor would be the choice to use if working with an IGR in a museum
setting. Interestingly enough, there is a 3rd option out called Nylar
that claims to work for both types of insect growth patterns.

 

As far as the use of the IGR's in the elevator shaft, I agree with Tom
that they will have limited effect on the juvenile population. A
secondary benefit of using the product, however, would be the
sterilization of at least some of the existing adult population. If you
suspect there are a significant number of adult moths left in the
building, the use of IGR's might be justified. I also highly recommend
Alpine. I used it in treating yellow jacket nests this year (which are
historically problematic) and found it to be highly effective. It has a
great one-two punch, and is non-repellant, which will help contain the
infestation rather than scattering it.

From: ad...@museumpests.net 
[mailto:ad...@museumpests.net  ] On
Behalf Of bugma...@aol.com  
Sent: Wednesday, November 02, 2011 6:58 PM
To: pestlist@museumpests.net  
Subject: Re: [pestlist] Webbing Clothes Moths and Gentrol?

 

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To post to this list send it as an email to pestlist@museumpests.net
 
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---

Denise -

 

I think Gentrol would be a waste of chemical.  Gentrol holds larvae in
the larval state; it usually does not prevent eggs from hatching.  The
Alpine Dust would be a good choice as long as the elevator pit remains
dry.

 

Thomas A. Parker, PhD

Pest Control Services, Inc.

-Original Message-
From: Denise Migdail mailto:dmigd...@asianart.org> >
To: pestlist mailto:pestlist@museumpests.net>
>
Sent: Wed, Nov 2, 2011 3:12 pm
Subject: [pestlist] Webbing Clothes Moths and Gentrol?

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After tracking and mapping webbing clothes moths for several months, we
have pinpointed our elevator shaft as a primary source.  It housed a
gradual build up of debris from eight years of service, which when
inspected did contain larvae.  We are now looking at having the elevator
shaft floor thoroughly cleaned and sprayed.  Our facilities provider has
suggested using Gentrol, but we have only found it referenced with
regards to beetles in the literature.  Any comments on the efficacy of
Gentrol for webbing clothes moths would be appreciated.  We are also
considering using an insecticide/desiccant combination - such as
PyGanic, or Alpine Dust (two suggested by 

RE: [pestlist] Webbing Clothes Moths and Gentrol?

[Anderson, Gretchen]

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The tests that I ran were very controlled --  in enclosed boxes and with
the specific "point source" product.  We first field tested this same
product to help deal with a drugstore beetle problem (in conjunction
with increased housekeeping, building maintenance) and thermal control.
This was about 5 years ago (before my time here).  The IGR was used
inside of storage cases and in open storage areas.  It seemed to help. I
would hesitate to depend on Gentrol Point Source in the situation
described. I suspect that the "point source" product should be best used
with in a more controlled space. 

 

The elevator and shaft can easily provide a highway for any pest and
pesticide.  Cleaning and housekeeping is going to be key to controlling
the infestation. In this situation the use of Gentrol in one of the
other application methods might work quite nicely to reduce the future
infestation.  It is an insect growth regulator - that is it is
formulated to limit the ability for the insect larva to mature to
adulthood and continue as a breeding population.  So it is not
technically a pesticide.  It functions differently and should not cause
the same kind of concern.  My preliminary tests show that it does work
on webbing clothing moths. I do suggest that you check into the carrier
- what is the substance  that is used to carry the IGR particularly if
the product is being sprayed.  

 

Gretchen 

 

 

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of
Mary Baughman
Sent: Thursday, November 03, 2011 11:18 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Webbing Clothes Moths and Gentrol?

 

Hi  -

 

I haven't researched this concern;

anecdotal evidence is all I have to back up a suspicion:

I wonder if elevators function like a bellows - pushing air up and down
in the building.

Is my concern unfounded?

If there is truth to the bellows notion, I would prefer that any
pesticide used in an elevator shaft be in a bait form that could not be
pumped up and down - and out - as the elevator moves.

 

Mary Baughman

 

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Denise -

 

I think Gentrol would be a waste of chemical.  Gentrol holds
larvae in the larval state; it usually does not prevent eggs from
hatching.  The Alpine Dust would be a good choice as long as the
elevator pit remains dry.

 

Thomas A. Parker, PhD

Pest Control Services, Inc.

-Original Message-
From: Denise Migdail 
To: pestlist 
Sent: Wed, Nov 2, 2011 3:12 pm
Subject: [pestlist] Webbing Clothes Moths and Gentrol?

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To post to this list send it as an email to
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After tracking and mapping webbing clothes moths for several
months, we have pinpointed our elevator shaft as a primary source.  It
housed a gradual build up of debris from eight years of service, which
when inspected did contain larvae.  We are now looking at having the
elevator shaft floor thoroughly cleaned and sprayed.  Our facilities
provider has suggested using Gentrol, but we have only found it
referenced with regards to beetles in the literature.  Any comments on
the efficacy of Gentrol for webbing clothes moths would be appreciated.
We are also considering using an insecticide/desiccant combination -
such as PyGanic, or Alpine Dust (two suggested by our facility
providers).

Denise Migdail
Textile Conservator
Asian Art Museum
200 Larkin Street
San Francisco, CA  94102


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RE: [pestlist] Webbing Clothes Moths and Gentrol?

[Anderson, Gretchen]

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I am currently testing Gentrol Point Source on an isolated population of
webbing clothes moths - this is the version that comes in a little disc-
and is not directly applied through spray or other methods.  This has
been in closed containers.  The preliminary results are positive. No
critters have been seen moving.


Gretchen Anderson

Conservator

Carnegie Museum of Natural History Museum

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of
Denise Migdail
Sent: Wednesday, November 02, 2011 2:54 PM
To: pestlist@museumpests.net
Subject: [pestlist] Webbing Clothes Moths and Gentrol?

 

This is a message from the Museumpests List.
To post to this list send it as an email to pestlist@museumpests.net
To unsubscribe please look at the footer of this email.
---
After tracking and mapping webbing clothes moths for several months, we
have pinpointed our elevator shaft as a primary source.  It housed a
gradual build up of debris from eight years of service, which when
inspected did contain larvae.  We are now looking at having the elevator
shaft floor thoroughly cleaned and sprayed.  Our facilities provider has
suggested using Gentrol, but we have only found it referenced with
regards to beetles in the literature.  Any comments on the efficacy of
Gentrol for webbing clothes moths would be appreciated.  We are also
considering using an insecticide/desiccant combination - such as
PyGanic, or Alpine Dust (two suggested by our facility providers). 

Denise Migdail
Textile Conservator
Asian Art Museum
200 Larkin Street
San Francisco, CA  94102

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RE: [pestlist] Clothes Moths?

[Anderson, Gretchen]

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Follow IPM procedures.  Monitor the space and clothing to identify the
infestation.  See if you can determine if there is a localized area
where they are prevalent.  Treat the clothing (freeze or heat according
to protocols listed on museumpest.net web site, for non collections
clothing dry cleaning is good).  Clean storage room and containers.
Continue to monitor to make sure that you have the infestation under
control.  Locating the infestation - all of it - and good housekeeping
will be key.

 

Good luck!

Gretchen Anderson

Conservator 
Carnegie Museum of Natural History

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of
bugma...@aol.com
Sent: Tuesday, July 19, 2011 5:10 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Clothes Moths?

 

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You must encapsulate susceptible items in polyethylene.  Carpet beetles
will not chew their way through it in order to lay eggs on your
garments.

 

Tom Parker

 

-Original Message-
From: Anne Lane 
To: pestlist 
Sent: Tue, Jul 19, 2011 1:53 pm
Subject: RE: [pestlist] Clothes Moths?

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Thank you. I guess. We don't really want to have carpet beetles, either.
Any suggestions on how to get rid of them in a really porous building
with no facilities to isolate anything? I think the first step we'll
take is to send all these cloaks out to be dry-cleaned, but if the lil
boogers have gotten into any collections areas, what can I do?

 

Anne

Anne  T  Lane,  Collections  Manager

The  Charlotte  Museum  of  History

where  history  has  a  home

3500  Shamrock  Drive

Charlotte  NC 28215

704-568-1774 X110

Fax - 704-566-1817

al...@charlottemuseum.org

 

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net
 ] On Behalf Of bugma...@aol.com
Sent: Tuesday, July 19, 2011 12:08 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Clothes Moths?

 

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Anne -

 

If it were webbing clothes moths and newer damage, you'd see silken
tubing.  If it were case-making clothes moths, you'd see what looks like
cocoons and lots of frass.  I doubt if you have either.  Neat holes in
protein-based materials are probably being caused by carpet beetle
larvae.  They often "hit and run".

 

Tom Parker

 

-Original Message-
From: Anne Lane 
To: pestlist 
Sent: Tue, Jul 19, 2011 10:55 am
Subject: [pestlist] Clothes Moths?

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Hello - I am seeing some fairly neat holes in our collection of wool
docents' cloaks, and some bits of fairly new wool embroidery neatly
grazed off some linen pockets. No frass, no webbing, and so far no sign
of the little fluttery critters. Could this be case-making clothes
moths? We can freeze, or heat, the items, but how do I keep this from
spreading to the rest of my collection? How do I even tell if these are
case-making clothes moths? Are there are pheromone traps available for
them? The items in qestion are stored on an open rack in an office along
with a bunch of other costumes, mostly linen and other cellulosic
fibers, some polyester. No signs of damage there.

Thanks,

 

Anne

Anne  T  Lane,  Collections  Manager

The  Charlotte  Museum  of  History

where  history  has  a  home

3500  Shamrock  Drive

Charlotte  NC 28215

704-568-1774 X110

Fax - 704-566-1817

al...@charlottemuseum.org

 

 

 


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RE: [pestlist] identification help

[Anderson, Gretchen]

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---
Where are you finding it?

 

Gretchen 

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of
Lisa V
Sent: Wednesday, July 06, 2011 12:01 PM
To: pestlist@museumpests.net
Subject: [pestlist] identification help

 

Dear list,

I'm hoping someone can help me identify this beetle. My apologies for
the poor photo. The beetle is dark red in color and about 5 millimeters
long. I work in Montana, if that helps with identification at all. Many
thanks in advance!

Best,
lisa


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RE: [pestlist] images for Pat

[Anderson, Gretchen]

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Adult black carpet beetles are usually 5-8mm long - closer to about ¼ inch - if 
I am doing the conversion correctly.  If it is a black carpet beetle - then the 
concerns are pretty much the same as the varied carpet beetle

 

Good luck,
Gretchen 

 



From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of 
Silence, Patricia
Sent: Wednesday, June 08, 2011 9:47 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] images for Pat

 

The tape measure in the picture indicates that the beetle in question is 1/2" 
long. Are black carpet beetles that big?

 

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Jones, 
Robert (Ryan)
Sent: Wednesday, June 08, 2011 9:25 AM
To: 'pestlist@museumpests.net'
Subject: RE: [pestlist] images for Pat

 

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Rachael: Certainly, I will submit it to Pat today.

 

 Thanks, Tom, for the ID. We have dealt mostly with Varied Carpet Beetles here 
in Williamsburgthis would be the first Black Carpet Beetle I have come 
across. The specimen is much larger than the Varied Carpet Beetle - almost 
twice the size of the adults I occasionally find on insect monitors. I will 
keep this in mind during future inspections.

 

From: Rachael Perkins Arenstein [mailto:rach...@amartconservation.com] 
Sent: Tuesday, June 07, 2011 11:45 PM
To: Jones, Robert (Ryan)
Subject: FW: [pestlist] images for Pat

 

Hi Ryan,

Would you be willing to submit your image to Pat Kelley for posting on the 
museumpests.net image library?

 

 

Rachael Perkins Arenstein

A.M. Art Conservation, LLC

Art Conservation, Preservation & Collection Management

rach...@amartconservation.com

www.AMArtConservation.com

917-796-1764

 

From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of Jones, 
Robert (Ryan)
Sent: Tuesday, June 07, 2011 10:49 AM
To: 'pestlist@museumpests.net'
Cc: Fryer, Luke; Shakibnia, David; Silence, Patricia
Subject: [pestlist] 

 

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---

Hey guys,

 

I was hoping to get an ID on these two insects. To me, the specimen with the 
black and white stripes resembles a Flea beetle, but I'm not sure if that's a 
correct ID. The black specimen could be any number of ground beetles that 
wander in and expire on the floor. Just playing it safe and making sure I don't 
have a collections problem on my hands.

 

Thanks in advance for your help.

 

Ryan Jones

 

Integrated Pest Management 

Specialist  

 

 

P.O. Box 1776

Williamsburg, VA 23187

 

(757)  220-7080

rjo...@cwf.org

 


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[pestlist] Conservation committee - SPNHC

[Anderson, Gretchen]

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Hi Armando - 
I am checking in - Has there been anything new on your project
(standards) since January?  Please let me know.  And are you going to be
at SPNHC this year? 


Thanks Gretcehn 

 



From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Armando Mendez
Sent: Wednesday, April 13, 2011 10:56 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Digets Mode

 

Daily for me please.

 

Thank you Leon.

 

Armando Mendez, IPM coordinator
Natural History Museum
Cromwell Road
London SW7 5BD 
Tel: +44(0)20 7942 5688
Fax: +44(0)20 7942 5559
Web: www.nhm.ac.uk   

"...freedom of thought is best promoted by the gradual illumination of
men's minds which follows from the advance of science..."
>From a letter to Edward Aveling (13 October 1881) 
Charles Robert Darwin (1809-1882) 

 

 

 



From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Rachael Perkins
Arenstein
Sent: 13 April 2011 14:39
To: pestlist@museumpests.net
Subject: RE: [pestlist] Digets Mode

I think a daily digest will allow for consolidation of messages yet
provide timely posts for those with time sensitive questions.  

 

Thank you Leon

 

 

Rachael Perkins Arenstein

A.M. Art Conservation, LLC

Art Conservation, Preservation & Collection Management

rach...@amartconservation.com

www.AMArtConservation.com

917-796-1764

 

From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Leon Zak
Sent: Wednesday, April 13, 2011 9:29 AM
To: pestlist@museumpests.net
Subject: [pestlist] Digets Mode

 

Hello all - 

 

I'm am setting up digest capabilities for this list. Digest mode (and it
is optional by user) will save the emails that have come in over a
certain period and then mail them to you all at once. If the period is
set to one day, all emails coming in that day would be sent to you at
one time at the end of the day.

 

I can set the digest period and the send time. Digest period options
are: daily, weekly, bi-weekly or monthly.

 

If you think you'd like to use the digest mode, please let me know which
period you would prefer - I can only set it to one.

 

Leon Zak

ZAK Software Inc.

http://zaks.com

 


The information contained in this message and/or attachments is intended only 
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or entities other than the intended recipient is prohibited.  If you received 
this in error, please contact the sender and delete the material from any 
system and destroy any copies.  Any views expressed in this message are those 
of the individual sender.


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Re: [pestlist] Digets Mode

[Anderson, Gretchen]

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Daily please-  good points all! 

- Original Message -
From: Terry Quinlan [mailto:quin...@algonquincollege.com]
Sent: Wednesday, April 13, 2011 10:32 AM
To: pestlist@museumpests.net 
Subject: RE: [pestlist]Digets Mode

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Daily please.

Terry Quinlan
Professor of Conservation
Applied Museum Studies
Algonquin College
1385 Woodroffe Ave
Building C Room 230
Ottawa, Ontario, Canada
K2G 1V8
613.727.4723 extension 5060
terry.quin...@algonquincollege.com
Blog: AMS Conservation Department http://profconservation.wordpress.com/
Facebook Group: Applied Museum Studies Conservation Department



From: pestlist-ow...@museumpests.net [pestlist-ow...@museumpests.net] On Behalf 
Of Sandrine Decoux [sandrine.dec...@bodleian.ox.ac.uk]
Sent: Wednesday, April 13, 2011 10:27 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Digets Mode

Daily would be best for me.

Thank you,

Sandrine

From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Leon Zak
Sent: 13 April 2011 14:29
To: pestlist@museumpests.net
Subject: [pestlist] Digets Mode

Hello all -

I'm am setting up digest capabilities for this list. Digest mode (and it is 
optional by user) will save the emails that have come in over a certain period 
and then mail them to you all at once. If the period is set to one day, all 
emails coming in that day would be sent to you at one time at the end of the 
day.

I can set the digest period and the send time. Digest period options are: 
daily, weekly, bi-weekly or monthly.

If you think you'd like to use the digest mode, please let me know which period 
you would prefer - I can only set it to one.

Leon Zak
ZAK Software Inc.
http://zaks.com




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RE: [pestlist] methodology to measure levels of pests?

[Anderson, Gretchen]

In addition, you need to take into account the type of collection.  Some
collections are more sensitive than others.  For example, if the
collection contains a lot of wool and feather then it is highly
sensitive to all pests that eat this type of material. And do not forget
the archival material that are associated with the collection - much of
that is paper based - so even a collection that is primarily inorganic,
say a geology collection or paleontology collection will be subject to a
significant loss of data if there is a serious silverfish or cockroach
(for example) infestation.  

 

Museum Pest Net is a great first stop to gain information on the main
museum pests. Use the white-sheets. You will get a feel for it.
Determine if it is active or not. 

 

Good luck! 
Gretchen Anderson

Conservator

Carnegie Museum of Natural History

 



From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of bugma...@aol.com
Sent: Tuesday, March 22, 2011 10:42 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] methodology to measure levels of pests?

 

It depends on the kind of pest:

 

If it's a webbing or case-making clothes moth - I'd say 2 or 3 is a
level of concern.  If it's the common carpet beetle - 4 or 5.  If it's
silverfish, probably 6 or more.  If it's mice - 1.  It also depends on
where you find them.  If carpet beetle larvae are feeding on dead
insects on a glueboard, that's not as much concern as if they were
feeding on a war bonnet or military uniform.

 

Tom Parker

 

-Original Message-
From: rafael paulino 
To: pestlist 
Sent: Tue, Mar 22, 2011 9:46 am
Subject: [pestlist] methodology to measure levels of pests?

Good morning, colleagues Pestlist. I wonder how can a conservator
without in-depth knowledge of entomology can perform measurements on
pests found in a file and verify that the levels are within the
"threshold of tolerance. "

I would appreciate information on the case.


Best Regard



Rafael Paulino




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of the individual sender.

RE: [pestlist] Springtails

[Anderson, Gretchen]

These are great ideas.  A combination of blocking, keeping your drains clean 
and the traps topped off are a good way to reduce these kind of populations.  
If you have drains that are no longer used, cap them!  I experienced a 
situation some years ago where we had a serious invasion of American 
cockroaches, and tracked to a drain that was no longer in use.  We capped it 
and the invasion stopped.  For active drains - keep them clean! 


Good luck!
Gretchen 

 



From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Crumpton, Trey
Sent: Tuesday, March 01, 2011 9:43 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Springtails

 

Susie,

 

We have had problems with moth flies and mosquitoes coming out of the floor 
drains in our restrooms. We cut squares of small gauge window screen (we used 
plastic or fiberglass) to fit under the grates, and have not had any problems 
with flying insects since.  Springtails could probably fit through the mesh, 
but it may slow them down.  You could also try cheese cloth or gauzejust 
make sure it won't impede drainage in the event of a toilet overflow.  Also be 
sure you are not violating fire code by putting something under the grate.

 

Another side note:  We had large numbers of springtails around our live animal 
exhibits.  As soon as we implemented a good schedule of floor cleaning, 
vacuuming, and wiping up of spilled water, the problem disappeared.  
Springtails still breed inside our amphibian tanks, but as soon as they escape, 
they shrivel! 

 

Good luck,

 

Trey Crumpton

Assistant Collections Manager

Mayborn Museum Complex

Baylor University

One Bear Place #97154

Waco, Texas  76798-7154

(254) 710-1190

Fax:  (254) 710-1173

www.maybornmuseum.com  

 

 

 

 

From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Marcie Kwindt
Sent: Tuesday, March 01, 2011 6:45 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Springtails

 

We have had issues with springtails in the past. In addition to Jim's advice on 
looking for areas of moisture we found it quite helpful to clean out all floor 
and sink drains. Floor drains in a few of our labs appeared to be the focal 
point for our Collembola problems. Moist environment with lots of mildew and 
fungi...yum! 

 

Marcie Kwindt

Conservation Technician / Technicienne en conservation

Canadian Museum of Nature / Musee canadien de la Nature

PO Box 3443 Stn. "D" / C.P. 3443, Succursale "D"

Ottawa, ON / Ottawa (ON)

K1P 6P4

Tel: 613-566-4787

Fax: 613-364-4027

Courriel / Email: mkwi...@mus-nature.ca  

Please tell us how we helped you today. Click Here 
 

Dites-nous comment nous vous avons aidé aujourd'hui. Cliquez ici 
 

The results of the survey will be accumulated regularly (at least quarterly) 
and shared broadly.

Thank you for your participation in this new initiative and in your continued 
efforts to provide scientific services to Canadians.

Les résultats du sondage seront compilés régulièrement (au moins tous les trois 
mois) et diffusés globalement.

Nous vous remercions de votre participation à cette nouvelle initiative et de 
vos efforts constants qui nous permettent de fournir des services scientifiques 
aux Canadiens.

-Original Message-
From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Jim Harmon Cal Pest Mgmt
Sent: Tuesday, March 01, 2011 1:11 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] Springtails

 

My experiences with Collembola problems is typically due to retained moisture.  
Do not use pesticide treatments.  Best way to kill is to dry out the 
environment where you are seeing them.  Check for plumbing leaks if on the 
interior areas  and for condensation or other moisture problems if around 
exterior walls or if you have a crawlspace.  Environmental modification is the 
only way to rid yourself of this pest.

 

Jim Harmon

California Pest Management, inc.

626-633-6620

 

From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Susan Fishman-Armstrong
Sent: Monday, February 28, 2011 5:53 AM
To: pestlist@museumpests.net
Subject: [pestlist] Springtails

 

We are having an outbreak of springtails.  I have been working with our Risk 
Management Department and we have had the nest sprayed.  However, I just 
checked our traps and either we didn't get the nest, or it has moved.  The 
springtails are around our collection objects and are drawing in beetles 
(probably to eat them).

 

Does anyone have any idea of the most effective way to get rid of them?  

 

Thanks,

 

Susie

 

+

Susie Fishman-Armstrong

Laboratory Coordinator

Antonio J. Waring, Jr. Archaeological Laboratory 

University of West Geor

RE: [pestlist] effect of freezing on Thylodrias contractus

[Anderson, Gretchen]

Jerry - 

 

That was the original thought, however more recent research out of CCI and 
others have shown that it is not necessary, more time consuming with more 
potential damage to objects.  Fast freeze and slow thaw is still preferred.  
And of course, double bagging to reduce/eliminate extreme relative humidity 
fluctuation, and danger of condensation.  


It is also best to insert a temperature probe with any thermal treatment (hot 
or cold).  However what is best is not always possible.

Gretchen 

 



From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Jerry Shiner
Sent: Thursday, February 17, 2011 10:58 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] effect of freezing on Thylodrias contractus

 

My understanding is that freezing to kill infestations is usually a two stage 
process, with the first freezing followed by a warm up, and then completed with 
a second freezing to kill any larvae that emerged after the first freezing. I'm 
presuming that this may be needed even if the insects are subjected to extreme 
cold.

 

I know that heat treatments can be controlled by inserting a temperature probe 
(into the very centre of the most thermally resistant objects) and heating the 
objects until the desired temperature is reached. I see no reason why this can 
not be done for freezing, especially if the job is large and the purchase of 
appropriate measuring instruments is justified.

 

js

 

Jerry Shiner

Keepsafe Microclimate Systems

800 683 4696  www.keepsafe.ca <http://www.keepsafe.ca/>  i...@keepsafe.ca

Specializing in the design, procurement, and installation of environmental 
control systems in museums and archives.

 

 

-Original Message-
From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of Anderson, Gretchen
Sent: Thursday, February 17, 2011 10:36 AM
To: pestlist@museumpests.net
Subject: RE: [pestlist] effect of freezing on Thylodrias contractus

Michaela - 

 

Let me add to what Tom is saying.  There are several factors to balance when 
applying thermal treatments.  First is the critical temperatures - and -20 deg 
C is usually manageable, and many of the tests have been done at that 
temperature.  Second, the length of time can be determined by the density of 
the pieces in question. Herbaria and archive material are often treated as 
stacks or blocks of paper based materials - it takes longer for the center of 
the material being treated to get to the critical temperature.  

 

>From my own experience (I was involved in moving a collection in which 
>Thylodrias contractus was a known presence from an old building to a new 
>museum facility.  We passed the entire dry biological (skins, taxidermy, 
>insects and skeletal collection) as well as other collections materials that 
>were susceptible to infestation through a walk-in freezer (we had one - we had 
>more time) that maintained -20 C.  Each batch of collections that went through 
>were in the freezer for 1-3 weeks - generally 2 weeks.  We successfully 
>knocked down the infestation by 99%.  The collection went into new clean 
>cabinets. There have been no re-occurrences in storage for 10 years. 

 

One week at -20 should do it - but I usually recommend 2 weeks - especially for 
a mass treatment such as this. 

 

I recommend going to Tom Strang's article on the CCI web-site as the best way 
to determine the length of time and critical temperature.  

http://www.cci-icc.gc.ca/crc/articles/mcpm/chap06-eng.aspx#10c1a

 

Good luck!

Gretchen  Anderson

Conservator

Carnegie Museum of Natural Hisotry

 



From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of bugma...@aol.com
Sent: Thursday, February 17, 2011 9:47 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] effect of freezing on Thylodrias contractus

 

Michaela -

 

First let me say you cannot compare the results of freezing cigarette beetles 
in herbaria materials to the Odd Beetle.  Cigarette beetles in herbaria 
materials are usually found in dried plant materials in a plant press.  The 
stack of plant materials in a plant press insulates the various stages of the 
beetle and will often result in a freezing failure.  Many herbaria use heat 
instead of freezing to disinfest dried plant specimens.

 

I can find no information in Tom Strang's paper, "A Review of Published 
Temperatures for the Control of Pest Insects in Museums", Collection Forum, 
8(2), 1992, pp. 41-67, which refers specifically to the Odd Beetle.  Being a 
dermestid beetle, I would assume it would take a week to insure complete kill 
at -20 degrees C.

 

Tom Parker

 

 

 

 

-Original Message-
From: Michaela Berner 
To: pestlist 
Sent: Thu, Feb 17, 2011 6:27 am
Subject: [pestlist] effect of freezing on Thylodrias contractus

RE: [pestlist] effect of freezing on Thylodrias contractus

[Anderson, Gretchen]

Michaela - 

 

Let me add to what Tom is saying.  There are several factors to balance when 
applying thermal treatments.  First is the critical temperatures - and -20 deg 
C is usually manageable, and many of the tests have been done at that 
temperature.  Second, the length of time can be determined by the density of 
the pieces in question. Herbaria and archive material are often treated as 
stacks or blocks of paper based materials - it takes longer for the center of 
the material being treated to get to the critical temperature.  

 

>From my own experience (I was involved in moving a collection in which 
>Thylodrias contractus was a known presence from an old building to a new 
>museum facility.  We passed the entire dry biological (skins, taxidermy, 
>insects and skeletal collection) as well as other collections materials that 
>were susceptible to infestation through a walk-in freezer (we had one - we had 
>more time) that maintained -20 C.  Each batch of collections that went through 
>were in the freezer for 1-3 weeks - generally 2 weeks.  We successfully 
>knocked down the infestation by 99%.  The collection went into new clean 
>cabinets. There have been no re-occurrences in storage for 10 years. 

 

One week at -20 should do it - but I usually recommend 2 weeks - especially for 
a mass treatment such as this. 

 

I recommend going to Tom Strang's article on the CCI web-site as the best way 
to determine the length of time and critical temperature.  

http://www.cci-icc.gc.ca/crc/articles/mcpm/chap06-eng.aspx#10c1a

 

Good luck!

Gretchen  Anderson

Conservator

Carnegie Museum of Natural Hisotry

 



From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On 
Behalf Of bugma...@aol.com
Sent: Thursday, February 17, 2011 9:47 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] effect of freezing on Thylodrias contractus

 

Michaela -

 

First let me say you cannot compare the results of freezing cigarette beetles 
in herbaria materials to the Odd Beetle.  Cigarette beetles in herbaria 
materials are usually found in dried plant materials in a plant press.  The 
stack of plant materials in a plant press insulates the various stages of the 
beetle and will often result in a freezing failure.  Many herbaria use heat 
instead of freezing to disinfest dried plant specimens.

 

I can find no information in Tom Strang's paper, "A Review of Published 
Temperatures for the Control of Pest Insects in Museums", Collection Forum, 
8(2), 1992, pp. 41-67, which refers specifically to the Odd Beetle.  Being a 
dermestid beetle, I would assume it would take a week to insure complete kill 
at -20 degrees C.

 

Tom Parker

 

 

 

 

-Original Message-
From: Michaela Berner 
To: pestlist 
Sent: Thu, Feb 17, 2011 6:27 am
Subject: [pestlist] effect of freezing on Thylodrias contractus

 

Dear colleagues,

 

I am trying to get some specific information about the effect of freezing on 
Thylodrias contractus. 

 

In the actual situation of a museum (moving collections in difficult 
conditions, chest freezer of the museum overloaded) the institution planed to 
rent a freezer truck for treating a part of the collection.  It seems that 
there will be no way to reach at least the temperature of -25°C in the 
available freezer truck, only -20°C. It was planed to treat one week at -20°C.

 

I am concerned about this short time of treatment at on only - 20°C and I have 
doubts about the effectiveness, especially because eggs of Thylodrias 
contractus could be present. I would rather recommend, if lower temperatures 
cannot be applied, two-three weeks of treatment in order to compensate for the 
higher temperature.

My doubts are reinforced by the experience of the Herbarium of the Academy of 
Natural Sciences in Philadelphia *: after treatment at -20° C for one week, 
larvae of Thylodrias were found  (the targed beetle was the cigarette beetle); 
the cold was suspected to act as a natural trigger for the hatching of the 
eggs.  

 

-Has anyone studied the effect of freezing on Thylodrias contractus at 
different stages, different temperatures and different time of treatment?

 

- Does any museum or institution noticed the reappearance of Thylodrias after 
freezing at only - 20°C? 

 

 

* "2004. Lesson in Integrated Pest Management (IPM): the herbarium of the 
Academy of Natural Sciences, Philadelphia".  Society for Preservation of 
Natural History Collections (SPNHC). Sasha Eisenmann, James Macklin and Lucinda 
MC Dade,  Department of Botany ANPS, Philadelphia. Poster presentation. Annual 
Meeting, NewYork city.

 

 

Thank you in advance for any information

 

Michaela Berner

Biologist 

Consultant

 14, rue Mayet

75006 Paris   France

tel: 00 33 /(0)1 44 49 99 81


The information contained in this message and/or attachments is intended only 
for the person or entity to which it is addressed and may contain confidential 
and/or privileg

RE: [pestlist] ID of pesticide package

[Anderson, Gretchen]

Sorry for the last message. Please ignore it. I meant to send it directly to 
Cathy.  It is what I get for trying to reply on my blackberry!  
Gretchen
-Original Message-
From: pestlist-ow...@museumpests.net on behalf of Anderson, Gretchen
Sent: Tue 2/1/2011 8:29 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] ID of pesticide package
 
Thanks. I am not surprized - that was my gut feeling when I started finding 
them in the collections. 

Another strike against poisons!

I am waiting for clit to call - we are suposed to be looking at houses on line. 
He is flying in to look on Monday and I want to have 6 to 8 for him to look at 
on tuesday and Wed. Who knows - maybe we can get this taken care of! And life 
can get back to normal. (That is too much to hope for.)

Best gretchen 
 

From: caha...@aol.com [mailto:caha...@aol.com] 
Sent: Tuesday, February 01, 2011 07:21 PM
To: pestlist@museumpests.net  
Subject: Re: [pestlist] ID of pesticide package 
 

Attached is a very old (i.e., poor quality) scan of a paper describing the 
breakdown products of DDVP strips - they are appallingly bad for collections, 
so aged strips should never be left in cabinets or exhibit cases. Ideally, they 
should have been disposed of about one month after they were put in place.
 
Cathy
 
Catharine Hawks
Conservator
2419 Barbour Road
Falls Church VA 22043-3026 USA
t/f 703.876-9272
mobile 703.200.4370 
 
In a message dated 2/1/2011 4:13:09 P.M. Eastern Standard Time, 
simmons.jo...@gmail.com writes:

Thanks to everyone for their identification and good advice on the 
ancient DDVP strip.  Unfortunately, I can't dispose of the pesticide strip 
because it isn't mine.  The photo was taken of the strip as it hangs in an 
exhibit in a public gallery of a well-known museum that shall remain 
nameless(but if you live in Chicago you can probably figure it out).  The 
exhibit contains a headdress which contains feathers and appears to be made of 
felt, hanging very close to the DDVP strip.

--John





The information contained in this message and/or attachments is intended only 
for the person or entity to which it is addressed and may contain confidential 
and/or privileged material. Any review, retransmission, dissemination or other 
use of, or taking of any action in reliance upon, this information by persons 
or entities other than the intended recipient is prohibited. If you received 
this in error, please contact the sender and delete the material from any 
system and destroy any copies. Any views expressed in this message are those of 
the individual sender.   ­­  


The information contained in this message and/or attachments is intended only 
for the person or entity to which it is addressed and may contain confidential 
and/or privileged material.  Any review, retransmission, dissemination or other 
use of, or taking of any action in reliance upon, this information by persons 
or entities other than the intended recipient is prohibited.  If you received 
this in error, please contact the sender and delete the material from any 
system and destroy any copies.  Any views expressed in this message are those 
of the individual sender.
<>

Re: [pestlist] ID of pesticide package

[Anderson, Gretchen]

Thanks. I am not surprized - that was my gut feeling when I started finding 
them in the collections. 

Another strike against poisons!

I am waiting for clit to call - we are suposed to be looking at houses on line. 
He is flying in to look on Monday and I want to have 6 to 8 for him to look at 
on tuesday and Wed. Who knows - maybe we can get this taken care of! And life 
can get back to normal. (That is too much to hope for.)

Best gretchen 
 

From: caha...@aol.com [mailto:caha...@aol.com] 
Sent: Tuesday, February 01, 2011 07:21 PM
To: pestlist@museumpests.net  
Subject: Re: [pestlist] ID of pesticide package 
 

Attached is a very old (i.e., poor quality) scan of a paper describing the 
breakdown products of DDVP strips - they are appallingly bad for collections, 
so aged strips should never be left in cabinets or exhibit cases. Ideally, they 
should have been disposed of about one month after they were put in place.
 
Cathy
 
Catharine Hawks
Conservator
2419 Barbour Road
Falls Church VA 22043-3026 USA
t/f 703.876-9272
mobile 703.200.4370 
 
In a message dated 2/1/2011 4:13:09 P.M. Eastern Standard Time, 
simmons.jo...@gmail.com writes:

Thanks to everyone for their identification and good advice on the 
ancient DDVP strip.  Unfortunately, I can't dispose of the pesticide strip 
because it isn't mine.  The photo was taken of the strip as it hangs in an 
exhibit in a public gallery of a well-known museum that shall remain 
nameless(but if you live in Chicago you can probably figure it out).  The 
exhibit contains a headdress which contains feathers and appears to be made of 
felt, hanging very close to the DDVP strip.

--John





The information contained in this message and/or attachments is intended only 
for the person or entity to which it is addressed and may contain confidential 
and/or privileged material.  Any review, retransmission, dissemination or other 
use of, or taking of any action in reliance upon, this information by persons 
or entities other than the intended recipient is prohibited.  If you received 
this in error, please contact the sender and delete the material from any 
system and destroy any copies.  Any views expressed in this message are those 
of the individual sender.

RE: [pestlist] ID of pesticide package

[Anderson, Gretchen]

Agreed - Old Vapona strips produced that very distinctive staining  --
only too familiar with it.  Thanks for identifying the chemical
breakdown - I was always curious - but pulled off on the next emergency
before checking on it!  Gretchen 

 



From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Cahawks
Sent: Tuesday, February 01, 2011 3:06 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] ID of pesticide package

 

Handle with care. The brown stain is a result of the phosphoric acid
exuded by the strip.   Cathy

 

-Original Message-
From: Del Re, Christine 
To: pestlist@museumpests.net
Sent: Tue, Feb 1, 2011 2:54 pm
Subject: RE: [pestlist] ID of pesticide package

Used to be called a "No Pest Strip" in the good old
days..

 

From: pestlist-ow...@museumpests.net

[mailto:pestlist-ow...@museumpests.net
 ] On Behalf Of Del Re,
Christine
Sent: Tuesday, February 01, 2011 1:52 PM
To: pestlist@museumpests.net  
Subject: RE: [pestlist] ID of pesticide package

 

Agreed. That is an old DDVP pest strip - we still have some buried in
our rather inaccessible light fixtures here...

 

From: pestlist-ow...@museumpests.net

[mailto:pestlist-ow...@museumpests.net
 ] On Behalf Of bugma...@aol.com
 
Sent: Tuesday, February 01, 2011 1:50 PM
To: pestlist@museumpests.net  
Subject: Re: [pestlist] ID of pesticide package

 

John -

 

From the stains at the bottom of the white cardboard, it appears to be
an old DDVP (Vapona) resin strip in an enclosure.  It's very old and no
longer volatilizing the pesticide, dichlorvos, into the air.  It can be
safely discarded into the regular trash.

 

Thomas A. Parker, PhD

President, Entomologist

Pest Control Services, Inc.

 

-Original Message-
From: John E Simmons mailto:simmons.jo...@gmail.com> >
To: pestlist mailto:pestlist@museumpests.net>
>
Sent: Tue, Feb 1, 2011 2:14 pm
Subject: [pestlist] ID of pesticide package

Can anyone help identify the pesticide likely to be in the package shown
in the attached image?

Thanks,
John

John E. Simmons
Museologica
128 E. Burnside Street
Bellefonte, Pennsylvania 16823-2010
simmons.jo...@gmail.com  
303-681-5708
www.museologica.com  
and
Adjunct Curator of Collections
Earth and Mineral Science Museum & Art Gallery
Penn State University
University Park, Pennsylvania 

 

= 


The information contained in this message and/or attachments is intended only 
for the person or entity to which it is addressed and may contain confidential 
and/or privileged material.  Any review, retransmission, dissemination or other 
use of, or taking of any action in reliance upon, this information by persons 
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this in error, please contact the sender and delete the material from any 
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RE: [pestlist] Definition of 'infestation'

[Anderson, Gretchen]

This is a message from the Pest Management Database List.
To post to this list send it as an email to pestlist@museumpests.net
To unsubscribe please look at the footer of this email.
---


































You are talking about risk here. An annual migration where the insects
(or other critters) get into the museum or historic structure, not only
provide a food source for pest species, but also indicate the presence
of access points that pest species can use also. This is potentially a
high risk scenario. 

Perhaps the question is active or inactive pest activity.  I always try
to make that distinction (if possible) when monitoring either a space or
an object.  An active infestation indicates ongoing activity (either
pest or non-pest species) - and higher risk.  Ongoing monitoring gives
you the data you need to determine action.

Evidence of past infestations that you suspect are no longer active is
important to note - it shows vulnerable specimens or areas. Inactive
infestations where damage has occurred to the object. 

Monitoring is the key here.  You need to know what species are present
and active.  You also need to determine if those present are a direct or
indirect threat to the collection.  And, you need to determine at what
level you can tolerate them (numbers of insects). This is some of the
information that you use to determine your mitigation strategies. 

Good question! Hope my thoughts help.
Gretchen 

-Original Message-
From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of
he...@collectioncare.org
Sent: Thursday, June 17, 2010 8:07 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Definition of 'infestation'


Great question.  I wondered if an infestation is when
objects show damage or are at risk.  For example, I worked
with a museum that had an annual migration through it, but
it wasn't something that fed on the collection.  Was this
an infestation?  It was a lot of bodies, but the only
danger was that they would attract feeders that might also
munch on the collection.
Best,
Helen Alten
> 
> 
> Dear colleagues,
> 
> I am currently examining 'risk' in terms of collections
> management. In drawing up a list of risks, I am
> considering the term 'insect infestation' (in terms of a
> storage space not an object).  The question is, how
> helpful a term is 'infestation'- is there a critical mass
> of bodies on traps in a store that merits it? Is there a
> more objectively determined way of expressing the level
> of risk to collections? 
> 
> I would welcome any thoughts.
> 
> Sharon Connell
> 
> 
> Sharon Connell
> Conservation Officer
> Brotherton Library
> University of Leeds
> Leeds
> LS2 9JT
> T: 44 (0)113 343 6375
> E: s.a.conn...@leeds.ac.uk
> 
> 
>
-
> To send an email to the list, send your msg to
> pestl...@museumpests.com
> 
> To unsubscribe from this list send an email to
> imail...@museumpests.net and in the body put:
> "unsubscribe pestlist"
> Any problems email l...@zaks.com
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 

Helen Alten
Director
Northern States Conservation Center
www.collectioncare.org
www.museumclasses.org
-
To send an email to the list, send your msg to pestl...@museumpests.com

To unsubscribe from this list send an email to
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RE: [pestlist] Clothes Moth Eating Habits

[Anderson, Gretchen]

That may be the case for some collections cases.  Others, such as
Viking/Interior Steel can be elevated to allow for vacuuming beneath the
case.  This has been done in the mammals collection at CMNH (Carnegie
Museum of Natural History).  As far as I can see there has been no
structural damage to these cases by doing this.  

 

Gretchen Anderson

Conservator 

Carnegie Museum of Natural History 



From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of bugma...@aol.com
Sent: Wednesday, May 05, 2010 7:49 AM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Clothes Moth Eating Habits

 

Cathy -

 

It would be great if the cases were elevated and open beneath, but a
kickplate actually is there for structural support of the weight of the
cases; you can't simply eliminate it.

 

Tom Parker

 

-Original Message-
From: Catharine Hawks 
To: pestlist@museumpests.net
Sent: Wed, May 5, 2010 6:55 am
Subject: Re: [pestlist] Clothes Moth Eating Habits

Better still, eliminate the kick plate and vacuum under the cases
regularly. 

Cathy 

Sent from my Verizon Wireless BlackBerry



From: bugma...@aol.com 

Date: Tue, 04 May 2010 18:11:35 -0400

To: 

Subject: Re: [pestlist] Clothes Moth Eating Habits

 

David -

 

I have found lots of protein debris in the void space beneath natural
history specimen ranges.  In order to address this problem, the kick
plate at the bottom of the cases should be drilled and Drione dust
injected into the void space beneath the cabinetry.  Drione is a
combination of pyrethrum and fine silica gel dessicant.  Even if the
pyrethrum dissipates in time, the silica gel dessicant will remain as an
effective insecticide for years, as long as it doesn't get wet.  If you
don't have Drione in England, either straight silica gel (finely divided
powder) or diatomaceous earth can be used as a dessicant dust.

 

Tom Parker

 

-Original Message-
From: David Pinniger 
To: pestlist@museumpests.net
Sent: Tue, May 4, 2010 2:51 am
Subject: Re: [pestlist] Clothes Moth Eating Habits

It seems that some pests have changed their habits!

Although I previously thought that clothes moths would only live in
substantial amounts of wool, fur or feathers in objects, in recent years
we have found them in organic debris.

Three very large London Museums have serious Tineola moth problems which
emanate from huge amounts of dirt and debris in dead spaces. The dead
spaces are either under floorboards or behind and under displays which
cannot be cleaned. This seems to be made up of large amounts of hair,
skin and fragments of clothing and so provides sufficient nutrition for
the larvae. Some fragments of human food from functions and cafes
provide the seasoning!

By the way, these deposits also support Anthrenus and Attagenus larvae,
sometimes in large numbers.

The pests can then of course spread into exhibits and infest them.

The images will give you some idea of the problem.

We all need to work with museum designers to prevent them creating these
uncleanable voids.

David

- Original Message - 

From: Rick Kerschner   

To: pestlist@museumpests.net 

Sent: Monday, May 03, 2010 5:21 PM

Subject: RE: [pestlist] Clothes Moth Eating Habits

 

Hi Tom,

I understand that insects can feed on human detritus in floor
cracks. What would surprise me would be if that were the main attraction
and only food source for an infestation in the building. As you note
states, they started in a dead pigeon and then moved to the tastier
banner, eventually ending up in the floor crack and beyond.

Rick 

 





From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net
 ] On Behalf Of bugma...@aol.com
Sent: Sunday, May 02, 2010 3:59 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Clothes Moth Eating Habits

Richard -

 

At a major museum in Chicago, I did find WCM larvae feeding on
hair and detritus lodged between the bricks of a trolley exhibit.  They
started in a trapped, dead pigeon, then moved to a wool felt banner
mounted high up on the wall of the trolley exhibit, ended up between the
bricks, and then on to a pioneer life exhibit.

 

Tom Parker

 

-Original Message-
From: Rick Kerschner 
To: pestlist@museumpests.net
Sent: Fri, Apr 30, 2010 9:03 am
Subject: RE: [pestlist] Clothes Moth Eating Habits

My experience reflects Molly's observations. Whenever I have
found insect infestations they have been on particularly "tasty"
artifacts, e.g. taxidermy mounts, fur mukluks, wool interior of a
carriage, that have been in storage in poor conditions and not vacu

RE: [pestlist] Clothes Moth Eating Habits

[Anderson, Gretchen]

There are many many instances of "clothing" moths infesting exhibits and
buildings.  I recently saw an instance where the wool carpeting in the
auditorium of a museum was literally shredded by moths and had to be
completely replaced. Moths do not differentiate between storage and
exhibition - they are looking for some thing edible in an environment
where they will thrive. Taxidermy is highly susceptible.  I recently
cleaned a deer mount that was full of moth frass, most likely from when
it was on exhibition (sorry no records).  Wool carpet and other wool and
protein based items are all susceptible. And it is a critter that is
very difficult to completely eliminate once they are established.

 

Also remember that while the moth larva might not eat the skin, it can
and will damage the skin, graze along the surface, and is capable of
boring through a skin.  I have seen inuit gut parkas that have been
damaged in this way.  

Gretchen Anderson

Conservator

Carnegie Museum of Natural History 

 



From: pestlist-ow...@museumpests.net
[mailto:pestlist-ow...@museumpests.net] On Behalf Of Molly Gleeson
Sent: Thursday, April 29, 2010 4:08 PM
To: pestlist@museumpests.net
Subject: Re: [pestlist] Clothes Moth Eating Habits

 

This is interesting, however, I'm wondering how many instances there are
of collections becoming infested by clothes moth larvae while on
display?  I guess I've never heard of that, but I'd be interested to
know if this is a frequent occurrence and a problem. We generally don't
let the public in storage areas, and, in my limited experience, that is
where the majority of these infestations occur.  

best,
Molly

Molly Gleeson
Conservator of Archaeological and Ethnographic Objects
San Diego, CA 

 



From: Heather Thomas 
To: pestlist@museumpests.net
Sent: Thu, April 29, 2010 12:42:12 PM
Subject: Re: [pestlist] Clothes Moth Eating Habits

Thanks for that Thomas. 

I thought that WCM would eat skin as they attack taxidermy specimens,
leather and dried animal remains or is it only the fur, hair and
feathers they eat? I'm starting to realise our collections would be a
lot safer if we didn't let the public in the our museums. :-)

 

On 29 Apr 2010, at 19:50, bugma...@aol.com wrote:





Heather -

 

When I give an IPPM lecture, I tell my audience a visitor drops 3 hairs
and one fingernail per visit.  WCM larvae will readily feed on the hair,
but usually not the fingernails.  Carpet beetles will feed on the
fingernails.  I know of nothing, which will damage collections, which
will feed on skin cells.  The public doesn't drop feathers.  Generally I
have found younger instars feeding on the debris in cracks between floor
boards and bricks in a museum.  Although I haven't seen it, I am
assuming in a large public museum, there's enough protein debris for a
WCM larva to complete its development and pupate utilizing the protein
materials dropped by the public.

 

Thomas A. Parker, PhD

President, Entomologist

Pest Control Services, Inc.