Ann -
Your first step is to go on-line and carefully read the label for Masterline B
MaxxPro Termiticide. A careful reading of the label DOES NOT INCLUDE webbing
clothes moths. So it would be illegal for the pest management professional to
use it in your museum for WCM's.
Secondly, the active ingredient in this product is a synthetic pyrethroid
called bifenthrin. After applied, it has a fairly short residual effect on
pests. It has no fumigant effect, i.e. the larvae or adults must walk through
the pesticide deposit or the pest must be sprayed directly in order for it to
be killed.
You may want to research if the chemical vapona is registered for use as a
residual spray in the State of Washington. It is registered for museum use
against fabric pests in many states in the U.S. It also is available for use
in museums as a pest strip. It has a mild fumigant action against pests.
Tom Parker
-----Original Message-----
From: Ann Poulson <a...@henryart.org>
To: pestlist@googlegroups.com <pestlist@googlegroups.com>
Sent: Thu, Jul 14, 2022 3:05 pm
Subject: [PestList] Webbing clothes moth infestation
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div.yiv9648872665WordSection1 {}-->Hello all, We are dealing with an active
infestation of webbing clothes moths in our clothing and textile collection. We
have been bagging, sealing, and freezing as we go, but they are moving faster
than we are. I have a few questions, and would love to gather your expertise.
Our pest consultant is recommending that we paint MasterLine B MaxxPro
Termiticide/Insecticide in the crevices and cracks of our shelving units, the
tracks for our compact storage, and around the doors. We are mainly relying on
the sealing and freezing of the vulnerable objects, but are considering this as
a supplementary measure. Does anybody have experience with this particular
chemical? Before I agree to its being used, I want to make sure that its
effectiveness would outweigh the risks and labor involved. We have been
using a chest freezer for a few things at a time, but as the moths have moved
into another area of our collection, we are looking into freezer trucks to take
care of large numbers of boxes and rolls at once. If anyone has experience
renting a freezer truck, and/or thoughts on what to look for when selecting a
truck, I would appreciate hearing about it. I am also looking for
information on how long to leave the items sealed in the bags. We aim to freeze
all of the clothing and textiles, but I am not sure how likely it is that moths
will continue to live in the space, which will still contain many other types
of art so fumigation is not an option. The last thing I want is to open the
bags and have to start this all over again. Generally, I would love to hear
from anyone who has made it through a webbing clothes moth infestation, what
measures they took, and how long it took before they felt that they were safely
through it. Feel free to contact me off-list ata...@henryart.org. Thank you!
Ann Poulson, PhD (she, her, hers) Curator of Collections HENRY ART
GALLERY a...@henryart.org | cell: 206.962.7269 University of Washington Box
351410, Seattle, WA 98195–1410 henryart.org Please note that our office
hours are Tuesday – Friday. --
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