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Pheromone traps would be a great way to pinpoint the location of origin of the
beetles. If the current treatment plan fails I would suggest going that route.
I am still curious about office spaces and or break rooms? JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080<tel:757-220-7080>
Cell 757-634-1175<tel:757-634-1175>
E-Mail jvo...@cwf.org<mailto:jvo...@cwf.org>
[X]
On Oct 26, 2017, at 1:36 PM, Voron, Joel
<jvo...@cwf.org<mailto:jvo...@cwf.org>> wrote:
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Thank you for you submission. Are there any offices or break rooms in or near
the space that has had issues? JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080
Cell 757-634-1175
E-Mail jvo...@cwf.org<mailto:jvo...@cwf.org>
<OutlookEmoji-1474552137245_IMG_0499.JPG0644abbd-de1f-4106-a05a-ddd08fb1f4e1.jpg>
________________________________
From: pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>
<pestlist-ow...@museumpests.net<mailto:pestlist-ow...@museumpests.net>> on
behalf of Dianna Krejsa
<dianna.kre...@angelo.edu<mailto:dianna.kre...@angelo.edu>>
Sent: Thursday, October 26, 2017 12:46:40 PM
To: pestlist@museumpests.net<mailto:pestlist@museumpests.net>
Subject: [pestlist] Persistent pest issue
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Hi everyone,
I am the Collections Manager at the Angelo State Natural History Collections.
We have a persistent pest problem with a number of insect species entering the
collections (seasonal crickets, ground beetles), but only a few that are
imminent dangers to our collections--what we believe to be drugstore beetles
(Stegobium paniceum) in the skins collection, and clothes moths (Tineola
bisselliella) in low density in a skull collection where wool was formerly
stored. Please see the attached photos for what species we are dealing with. We
have historically used freezing and isolation to manage pest outbreaks, but the
degree of pest exposure is greater at this time. Our collection cases are
elevated, the door seals are generally in good shape, and we use and monitor
sticky traps
Specimens--and, at times, cases--with beetles are frozen at -20C for 2wks when
positive for pests or pest frass, but the number of cases with pests exceed our
freezer capacity. Live drugstore beetles have been found in one collection room
on the floor as well as on the tops of cases. We have fogged the room with
CB-80 (0.05% pyrethrin, nonresidual) with case doors closed. We plan to fog
again two weeks after this initial fogging to catch any larva that may have
hatched since the first treatment.
The collections room has some degree of shelving, books, etc. that may harbor
pests. Fogging the room we hope rids them from those habitats. The collections
are housed within an older biology building. We don't have the resources to do
major facilities work, but if there are suggestions for better sequestering our
collections through some facilities upgrades I'd be glad to hear it. There are
drugstore beetles in rooms within the biology building outside of the
collections and I fear they simply re-enter after we fumigate. Tight door
sweeps have been installed and windows (where they exist) have been re-sealed.
I am working on potentially getting additional filters or fine screens
installed for our HVAC ducts.
My questions for you all:
1. Are we correct in our pest identifications? Striations appear on the
elytra of the beetles, and they do possess the characteristic antenna of
drugstore beetles (though this doesn't show up in my photos).
2. For drugstore beetle infestations in particular, does anyone have
specific recommendations?
3. Is anyone using fogging? Did you leave the doors to your cases open
during fogging? Has anyone used CB-80 as a museum-approved aerosol?
I would be happy to provide additional useful details. Thank you in advance.
Dianna
[ASU]
Dianna M. Krejsa
Collections Manager, Angelo State Natural History Collections
Angelo State University
Member, Texas Tech University System
ASU Station #10890
San Angelo, TX 76909-0890
Phone: (325) 486-6699
Office: Cavness 015
dkre...@angelo.edu<mailto:robert.dow...@angelo.edu>
<mailto:robert.dow...@angelo.edu>
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