One other thing to check in make sure a pest company is not baiting inside of
the structure. The fat in the baits can come with carpet beetle eggs already in
it from the factory as the slurry does not get heated high enough to kill them
in the manufacturing process. Totally fine in bait boxes on the exteriors, but
a big no no with interiors.....Learned that one from Tom Parker. JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080
Cell 757-634-1175
E-Mail [email protected]
[1474552137245_IMG_0499.JPG]
________________________________
From: [email protected] <[email protected]> on behalf of
Jessica Lian Pace <[email protected]>
Sent: Thursday, August 23, 2018 10:28:47 AM
To: [email protected]
Subject: Re: [pestlist] live carpet beetle larva - origin?
Thanks for your insight everyone! The lower shelves of the cabinet are used to
house collection materials in the lab for treatment, and the upper shelves are
either empty or used to store blotter. We took out all the board and threw any
that looked dirty. As you see in the attached image, the cabinet is not
tightly sealed. It rests on top of a metal flat file and there is nothing
stored directly on top of it. There has not been any rodent activity in the
area. I checked on top of the cabinet and didn't see any evidence of pests,
but will continue to monitor. We do have a false ceiling but this is a very
active lab so I assume any strange odors would have been immediately reported.
I will keep an eye on it nonetheless.
On Wed, Aug 22, 2018 at 5:39 PM 'bugman22' via Museumpests
<[email protected]<mailto:[email protected]>> wrote:
My experience has found when black carpet beetle larvae or adults are found
there has to be a nutritious source of protein on which they are feeding. Most
of the time it's a dead pigeon or starling or mouse. I have also found them in
large accumulations of dead insects in attics. When the larvae are ready to
pupate, they often leave the host and travel some distance.
If your facility has a pest management program, make sure no one is using
rodent bait. It will result in carcasses in our-of-the-way places on which CB
larvae will feed. You should solely be using snap traps and glueboards for
your rodent control program.
Could there be a dead rodent in a false ceiling above this area and the larva
dropped down from above?
Tom Parker
-----Original Message-----
From: Julia Sybalsky <[email protected]<mailto:[email protected]>>
To: pestlist <[email protected]<mailto:[email protected]>>
Sent: Wed, Aug 22, 2018 5:20 pm
Subject: Re: [pestlist] live carpet beetle larva - origin?
Hey there,
What was in the cabinet previously? What else is in it now? How tightly sealed
is it? What is outside and under the cabinet? Any mouse activity in the area?
On Aug 22, 2018, at 5:10 PM, Jessica Lian Pace
<[email protected]<mailto:[email protected]>> wrote:
Hello everyone,
We discovered what appears to be a live black carpet beetle larva on top of a
flat, unassembled custom box. The box was received approximately 2 months ago
and was stored on the top shelf of a wood cabinet. The shelf is approximately
9' high. There are no proteinaceous materials stored in the cabinet, and no
other beetles or cast off skins were discovered during an examination and
cleaning of the shelving.
We have not had beetles in the past and are wondering where it could have come
from - is it possible that it came with one of the boxes as an egg? Should I
be concerned about a possible infestation?
Regards,
Jessica
--
Jessica Pace
Preventive Conservator
Barbara Goldsmith Preservation and Conservation Department
NYU Libraries
70 Washington Square South
New York, NY 10012
(212) 998-2518
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Jessica Pace
Preventive Conservator
Barbara Goldsmith Preservation and Conservation Department
NYU Libraries
70 Washington Square South
New York, NY 10012
(212) 998-2518
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