Re: [PestList] Risks to artwork materials from methyl bromide or freezing - options

2020-07-06 Thread Rachael Arenstein
Just so people are aware, there is information on a study done at the Smithsonian's National Museum of the American Indian about freezing on stretched hides. You can read a summary on the MuseumPests.net website at https://museumpests.net/wp-content/uploads/2014/03/MechanicalBehaviorofAnimalHidesat

Re: [PestList] Webbing Moth Question

2020-07-06 Thread Louis N Sorkin
Webbing clothes moths can be a bring problem with crickets and mealworms in culture. Use of dried crickets will do very well in attracting female moths while the pheromone lures do well with the male moths. Louis N. Sorkin, B.C.E. (Retired) | Entomologist, Arachnologist, Myriapodologist Insec

Re: [PestList] Webbing Moth Question

2020-07-06 Thread 'Thomas Parker' via MuseumPests
In 44 years of inspecting museums, I have never seen WCM larvae feeding on dead insects. Just not their thing. Tom Parker > On Jul 6, 2020, at 5:32 PM, Todd Holmberg wrote: > >  > Wow- that is so interesting! It's encouraging to hear WCM success stories > like this where the problem vanishes

Re: [PestList] Webbing Moth Question

2020-07-06 Thread Todd Holmberg
Wow- that is so interesting! It's encouraging to hear WCM success stories like this where the problem vanishes after a specific cause is positively identified. Thanks for sharing this info! -Todd On Mon, Jul 6, 2020 at 4:24 PM Christina M. Cain < christina.c...@colorado.edu> wrote: > Todd, > >

RE: [PestList] Webbing Moth Question

2020-07-06 Thread Christina M. Cain
Todd, Getting rid of bait stations is a common challenge. If you can move away from those, it would be best for all of the reasons you mention. For our situation, we ended up hiring a plumber who had a scoping camera that we could drop into the wall from a small hole. That sort of equipment m

Re: [PestList] Webbing Moth Question

2020-07-06 Thread Todd Holmberg
Christina- Interesting... We do use mouse poison bait stations. Moving away from them has been one of those "back burnered" topics for a long time. They are not only problematic because of the potential moth issue if they die in the building, but also a bad situation if the mice do make it out a

RE: [PestList] Webbing Moth Question

2020-07-06 Thread Christina M. Cain
Hi Todd, You are giving me flashbacks. I was once at a museum with unexplained clothes moths. Turns out they were feasting on a dead bird inside of a wall (new construction building). They were find their way out of the recesses of the wall by the dozens and it took months to figure out where

[PestList] Webbing Moth Question

2020-07-06 Thread Todd Holmberg
Hello Group- I am wondering if anyone here can confirm if webbing clothes moth larvae feed on dead insects. I have seen dermestid larvae first hand feeding on other dead insects (stuck in a trap), and am looking into the possibility of that being true for WCM as well. "Other dead insects" doesn't

RE: [PestList] Pest identification help

2020-07-06 Thread Dee Stubbs-Lee
Thanks! Dee From: pestlist@googlegroups.com [mailto:pestlist@googlegroups.com] On Behalf Of Tony Irwin Sent: Monday, July 6, 2020 4:01 PM To: pestlist@googlegroups.com Subject: Re: [PestList] Pest identification help Hi Dee Bryobia are visitors, often coming indoors during the summer. They feed

Re: [PestList] Pest identification help

2020-07-06 Thread Tony Irwin
Hi Dee Bryobia are visitors, often coming indoors during the summer. They feed on plants, so won't eat any exhibits, but they often occur in large numbers and accidentally squashing them will leave a red stain, so they need to be treated with care if they do find their way into cases or stores. Th

[PestList] RE: Pest identification help

2020-07-06 Thread Dee Stubbs-Lee
Thanks, Helen. Some of the “specks” are indeed rather reddish in colour. Tony Irwin also suggested they looked like mites. I wish I had taken a closer look under the microscope before tossing out the trap. I will have to keep an eye out for more of these and have a closer look. Dee Dee A. Stu

[PestList] RE: Pest identification help

2020-07-06 Thread Helen Coxon
Hi Dee, Could be poop, but typically I would see an insect close to the specks if that were the case. Enlarging as much as the resolution allows, I think I see legs on many, if not all, of your speckles. I would say you have mites of some kind. Here in Toronto we are just in the middle of th

RE: [PestList] Pest identification help

2020-07-06 Thread Dee Stubbs-Lee
Thanks, Christian. Silverfish are one of my most common pests. I think ours are Lepisma. Interestingly, the places I find them around the museum don’t always seem to be associated with high RH, which I have always found curious, though I suppose there are always little microclimates. Dee Dee

Aw: [PestList] Pest identification help

2020-07-06 Thread CDressen
Hallo Dee, if there is an infestation of giant silverfish (Ctenolepisma longicaudata) you can find excrement looking like ground pepper. It would be worth to identify the silverfish, if it is Ctenolepisma longicaudata or Lepisma saccharina.   If you need further help, just contact me.   Good

RE: [PestList] Pest identification help

2020-07-06 Thread Dee Stubbs-Lee
Interesting, thanks Tony. Should I be concerned about these or are they just incidental visitors? Dee From: pestlist@googlegroups.com [mailto:pestlist@googlegroups.com] On Behalf Of Tony Irwin Sent: Monday, July 6, 2020 11:01 AM To: pestlist@googlegroups.com Subject: Re: [PestList] Pest identif

Re: [PestList] Pest identification help

2020-07-06 Thread Tony Irwin
The size, shape and colour suggest these are *Bryobia *- clover mites. Tony Dr A.G.Irwin 47 The Avenues Norwich Norfolk NR2 3PH England mobile: +44(0)7880707834 phone: +44(0)1603 453524 On Mon, 6 Jul 2020 at 13:46, Dee Stubbs-Lee wrote: > Hi all, > > > > Can anyone help me identify these smal

Re: [PestList] Risks to artwork materials from methyl bromide or freezing - options

2020-07-06 Thread 'bugman22' via MuseumPests
Suzi - Sulfuryl fluoride, Vikane, sent through a filtration system, would be your quickest (24 hours under gas) way to insure complete kill of any stage of insects.  Contact one of your largest pest management firms for advice about your situation. Tom Parker -Original Message- From: S

[PestList] RE: Risks to artwork materials from methyl bromide or freezing - options

2020-07-06 Thread Suzi Shaw
Thanks Jeff, no not yet – I’ve had a lot of free advice from Alex recently about other projects, so thought I would ask here first 😊 Suzi Shaw Conservator, Frames and Furniture National Gallery of Victoria 180 St Kilda Road Melbourne VIC 3004 T: +61 3 8620 2123 F: +61 3 8620 2555 M: NGV.MELBOU

[PestList] Re: Risks to artwork materials from methyl bromide or freezing - options

2020-07-06 Thread Jeffrey Fox
Hi Suzi, Have you had a chat with Alex Roach from Modified Atmospheres here in Sydney? He might be able to provide some effective alternatives. Regards, Jeff Get Outlook for Android From: pestlist@googlegroups.com on behalf of Suzi Shaw

[PestList] RE: Risks to artwork materials from methyl bromide or freezing - options

2020-07-06 Thread Suzi Shaw
Thank you Stephan, yes you’re absolutely right – its incredible that methyl bromide is still advocated for use here… We have only had to use it once in my 20 yrs working at my institution, and hopefully never again. Unfortunately I don’t have access to my usual folder of research (the joys of w