I would have maintenance check above grid work ceiling with a spotlight for a
source. Rodents love to use drop ceilings as their secret highways. Look for
“water spots” or tide lines as well in the ceiling tiles...that’s why
restaurants started painting their tiles black to hide any rodent urine stains
along their trails or abandoning those types of ceilings altogether.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 [email protected]<mailto:[email protected]>
[X]
On Feb 20, 2020, at 12:07 PM, Pollack, Richard J <[email protected]>
wrote:
Is there an exhaust vent serving this room? If so, check the duct for an animal
carcass or cache of food. If not, I’ll vote that there’s a dried carcass above
the ceiling or in a wall void. The animal likely desiccated long ago, so
there’d not be a detectable (by you) odor. The beetles, however, have more
sensitive olfactory abilities and will find the carcass. You’d then have a
somewhat synchronous hatch and development of the next generation. The sudden
appearance of many beetles simultaneously would explain what you’ve described.
Richard J. Pollack, PhD
HARVARD UNIVERSITY
Environmental Health and Safety (EH&S)
Senior Environmental Public Health Officer
46 Blackstone St.
Cambridge, MA 02139
Office: 617-495-2995 Cell: 617-447-0763
www.ehs.harvard.edu
[email protected]<mailto:[email protected]>
From: <[email protected]> on behalf of Adrienne Dastgir
<[email protected]>
Reply-To: "[email protected]" <[email protected]>
Date: Thursday, February 20, 2020 at 12:00 PM
To: "[email protected]" <[email protected]>
Subject: [pestlist] Varied Carpet Beetle (Attagenus verbasci).
Good morning all,
Yesterday it appeared as if it had rained Varied Carpet beetles in our lab. I
counted 29 in just one spot which near our storage room and photography room.
Which are also in the lab. I counted another two in our photography room.
This morning I found even more I found 3 in the lab and 2 in the photography
room. I have not saw anything like this before so I am little confessed as to
where they may have come from.
I keep the lab clean because collections are allowed to be brought from the
collection storage into the lab to be worked on, and then taken back to the
collection storage. No food is allowed in the lab. Drinks with lids are okay.
I have a few suggestion as to where they may have come from. 1. The floor and
the wall because there is gap between the floor and the wall cover with rubber
baseboard. 2. The large pipe that is in the Photography room. 3. The ceiling
we have ceiling tiles. I am yet to fine a source to where they are located. I
know they do not live in nest like ants. I also know that they group together
for food source. I have walked outside did not see anything and I don’t smell
a dead animal.
About a month ago an larvae was found in the photography room on the trap. But
no more in that area was found and the area was cleaned.
I do not want them to get into the collection area which is just across the
hall from the lab.
My question is how could there be so many at once and I did not notice them?
Has anyone else encounter something like this before?
Thanks,
Adrienne Dastgir
Curator of Collections
W: (580) 622-7156 Ex. 65078
Email: [email protected]<mailto:[email protected]>
Chickasaw Cultural Center
867 Charles Cooper Memorial Drive
Sulphur, OK | 73086
<image001.png>
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