From the MSDS:
Chemical Names
CAS Numbers
Exposure Limits
in Air (give units)
ACGIH TLV
OSHA PEL
Other(Specify)
Perlite
93-763-70-3
10 mg/M 3
15 mg/M 3
A mineral composed of sodium potassium aluminum silicate
What
are the specific human pressures?
1. Shifting cultivation, cutting of trees for
fuelwood, and use of orchids for traditional ethnic medicine are some
example.
Are there any
pressures tocollect the orchids
for orchid collectors or
commercialoperations?
Yes, large
quantities of
In a message dated 11/16/05 2:53:47 PM, Viateur writes:
What are the health problems that might result from the use of dry perlite
?
Perlite is primarily silicon, volcanic in origin 'puffed' by rapid heating.
The resulting material is then crushed into the desired size (a more scientific
Does anyone out there know the correct EC and pH levels for watering
orchids? I use tap water, Dyna-Gro 7-9-5 and Pro-Silica. I then let the 70
litre barrel sit for a day before using it to water my orchids. This is to
let any chlorine in the water evaporate. Any help will be greatly
appreciated.
While it may vary from plant to plant, I find that a pH in the neighborhood
of 5.8 to 6.3 seems to be a pretty good, general target.
As far as the EC is concerned, that will depend upon several factors, such
asthe ionic makeup of your nutrient solution (contact Dyna-Gro for
specific info),
I also grow and bloom Oeceoclades roseovariegata successfully, but I
have killed two Oeceoclades spathulifera plants. Despite having
killed two of them, I'm not sure why. The plants simply shed their
leaves, and then the pseudobulbs shrivel. In contrast, O.
roseovariegata grows very
Is Neolauchea pulchella or Isabelia pulchella the proper name of the orchid
from Brazil?
Susan Taylor
___
the OrchidGuide Digest (OGD)
orchids@orchidguide.com
http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
Susan [Taylor] wrote : Neolauchea pulchella or Isabelia pulchella
In the World Checklist of Monocotyledons / Royal Botanic Gardens, Kew,
the accepted name is
Isabelia pulchella (Kraenzl.) C.Van den Berg M.W.Chase
which was proposed in Lindleyana 16: 109 (2001).
the name
Neolauchea pulchella
Hi FOLKS!
The info on Epi. ciliare was very helpful, thanks to all.
NOW I need info on a systemic fungicide that will work on Pythium. This
black mold is killing my Vandas as it has killed many of my Phalaenopsis.
All because of the constat rain that keeps falling, day in and day out,
every
In a message dated 11/17/05 10:51:36 AM, Susan [Taylor] writes:
Is Neolauchea pulchella or Isabelia pulchella the proper name of the orchid from Brazil?
I believe it was returned to Neolauchea by most authorities.
iris
___
the OrchidGuide Digest (OGD)
Hi everyone,
With the exception of OFE, where does everyone order
sphagnum moss? Ive just about lost my patience with OFEs
slowness.
Thanks,
Julia
___
the OrchidGuide Digest (OGD)
orchids@orchidguide.com
Reservoir gets final permit
Environmental groups plan to challenge the approval of the project in
federal court.
The Army Corps of Engineers signed a permit ... that allows Newport News to
build a reservoir that will supply 20 million gallons of water daily to
more than 600,000 customers ...
Julia,
Have you tried Tropical Plant Products in Orlando?Paul and Diane LeBlanc Species Orchidshttp://www.bluemoonexotics.com
-Original Message-From: Redman, Julia C. [mailto:[EMAIL PROTECTED]Sent: Thursday, November 17, 2005 12:34 PMTo: Orchids@orchidguide.comSubject: [OGD] NZ sphagnum
Title: Re: [OGD] NZ sphagnum moss
Depends on where you are from, I purchased my New Zealand
Sphagnum from these two web addresses in the last two years. I usually
purchase a quantity of supplies at one time so I save on shipping
costs.
http://www.orchidmix.com/
http://www.orchid-supplies.com/
I have ordered sphagnum moss from from
http://www.losvolcanes.com/spmoss.htm every year for the past 6 or 7
years. They ship very fast and don't require you to prepay for the
goods. But their moss is from Chile though, not New Zealand. >From my
experience, their Chilean moss is of high
Brian O'Brien wrote:
Subject: [OGD] Oeceoclades roseovariegata photos
I've placed some photos of Oeceoclades roseovariegata in a Flickr set
- see http://www.flickr.com/photos/[EMAIL PROTECTED]/sets/1384257/.
**
Only a mother couod love it. g From the photo it looks like
Juli wrote:
NOW I need info on a systemic fungicide that will work on Pythium. This
black mold is killing my Vandas as it has killed many of my Phalaenopsis.
All because of the constat rain that keeps falling, day in and day out,
every week, every month for the past six years in this country that
I will be out of the office from 18/11/2005 to 25/11/2005.
I will respond to your message when I return.
___
the OrchidGuide Digest (OGD)
orchids@orchidguide.com
http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
At 04:44 PM 11/17/2005, you wrote:
Brian O'Brien wrote:
Subject: [OGD] Oeceoclades roseovariegata photos
I've placed some photos of Oeceoclades roseovariegata in a Flickr set
- see http://www.flickr.com/photos/[EMAIL PROTECTED]/sets/1384257/.
**
Only a mother couod love it. g
Most of us know the hazards of blue asbestos, but
what is the medical comparison to perlite? Even commercial barks have warnings
about health hazards, including Legionnaires disease! Some grades of perlite
here in Melbourne appear to be fairly free of dust so need no sieving to remove
it.
I am trying to avoid the use of sphagnum moss
forseveral reasons:
1. it deteriorates over time and can then destroy
roots of orchids
2. when used alone, it is difficult to remove,
especially from fine roots as in maxillaria
3. sphagnum moss is getting expensive, and
harder tofind a source
21 matches
Mail list logo
