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Group -
It sounds like the applicator is going to use an aerosol or fog application of
Gentrol --- NOT good for any collection. Pesticide applications are short-term
"fixes"; you really haven't found the reasons infestations exist and aim
prevention methods at them.
And yes, it will hold larvae in the larval state where they will keep on
feeding.
It's time you had someone set up a proper IPPM (Integrated Preventive Pest
Management) program for your facility, which would basically eliminate the need
for any pesticides (except for your termite situations).
For instance, there are readily-available pheromone traps for drugstore
beetles. Wouldn't it be more logical to have a thorough inspection and find
out the source of the drugstore beetles? Is it old rodent bait? Is it some
sort of dried plant material? Or is it someone housing cooking spices
somewhere nearby? Is it an accumulation of pigeon droppings in an attic or an
exterior ledge? Same could be said for the cockroaches - why are they present
and where is the source? If it's American's, they are probably walking in.
Thomas A. Parker, PhD
President, Entomologist
Pest Control Services, Inc.
469 Mimosa Circle
Kennett Square, PA 19348
www.museumpestcontrol.com
-----Original Message-----
From: Alan P Van Dyke <apvand...@utexas.edu>
To: pestlist <pestlist@museumpests.net>
Sent: Mon, Jun 27, 2016 1:05 pm
Subject: Re: [pestlist] IGRs
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We already spray the exterior of the building with esfenvalerate, which has
helped tremendously preventivng new critters from getting in. However, we
still need to address our resident populations.
My understanding is that Gentrol (hydroprene) will also affect a handful of
other common pests, including drugstore beetles. Our biggest concern about
using this product is how the IPM coordinator for our campus described how it
is used. He made it sound like the chemical travels through the building, or
at least parts of it, meaning that it touches everything. We're used to target
spraying, but the idea of a chemical floating through the air and coming into
contact with photographic collections does raise a concern.
Another concern we are curious about is if Gentrol arrests development of
larva, do they stay in the larval stage longer and cause more damage to
whatever they are feeding on as a result?
Mostly I'm interested in hearing if anyone else out there has tried IGRs and
what their experiences are.
Thanks,
Alan
On Mon, Jun 27, 2016 at 11:24 AM, bugman22 <bugma...@aol.com> wrote:
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Group -
Insect growth regulators do not work on all insects across the board. They
work primarily on cockroaches and fleas. They disrupt the molting process of
cockroaches and hold fleas in the harmless larval stage. They would not be a
good choice for fabric pests or silverfish.
Tom Parker
-----Original Message-----
From: Voron, Joel <jvo...@cwf.org>
To: pestlist <pestlist@museumpests.net>
Sent: Mon, Jun 27, 2016 10:12 am
Subject: Re: [pestlist] IGRs
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What is the target pest?
Joel Voron
Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080
Cell 757-634-1175
E-Mail jvo...@cwf.org
From: pestlist-ow...@museumpests.net <pestlist-ow...@museumpests.net> on behalf
of Alan P Van Dyke <apvand...@utexas.edu>
Sent: Monday, June 27, 2016 9:40:18 AM
To: pestlist@museumpests.net
Subject: [pestlist] IGRs
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Hello PestList,
We've been approached by our campus IPM coordinator about using insect growth
regulators within our building. Being as that we are the home to not only a
large collection of books and manuscripts, but photographs as well. If we were
just a regular library, I'd say to go for it, but we aren't. What is the
current thought on using IGRs in cultural institutions, especially those with
chemically sensitive collections?
Thanks,
Alan Van Dyke
--
Alan P. Van Dyke
Preservation Staff
Harry Ransom Center
The University of Texas at Austin
P.O. Box 7219
Austin, TX 78713-7219
P: 512-232-4614
www.hrc.utexas.edu
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