This is a message from the Museumpests List. To post to this list send it as an email to [email protected] To unsubscribe please look at the footer of this email. ----------------------------------------------------------- The tests that I ran were very controlled -- in enclosed boxes and with the specific "point source" product. We first field tested this same product to help deal with a drugstore beetle problem (in conjunction with increased housekeeping, building maintenance) and thermal control. This was about 5 years ago (before my time here). The IGR was used inside of storage cases and in open storage areas. It seemed to help. I would hesitate to depend on Gentrol Point Source in the situation described. I suspect that the "point source" product should be best used with in a more controlled space.
The elevator and shaft can easily provide a highway for any pest and pesticide. Cleaning and housekeeping is going to be key to controlling the infestation. In this situation the use of Gentrol in one of the other application methods might work quite nicely to reduce the future infestation. It is an insect growth regulator - that is it is formulated to limit the ability for the insect larva to mature to adulthood and continue as a breeding population. So it is not technically a pesticide. It functions differently and should not cause the same kind of concern. My preliminary tests show that it does work on webbing clothing moths. I do suggest that you check into the carrier - what is the substance that is used to carry the IGR particularly if the product is being sprayed. Gretchen ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Mary Baughman Sent: Thursday, November 03, 2011 11:18 AM To: [email protected] Subject: Re: [pestlist] Webbing Clothes Moths and Gentrol? Hi - I haven't researched this concern; anecdotal evidence is all I have to back up a suspicion: I wonder if elevators function like a bellows - pushing air up and down in the building. Is my concern unfounded? If there is truth to the bellows notion, I would prefer that any pesticide used in an elevator shaft be in a bait form that could not be pumped up and down - and out - as the elevator moves. Mary Baughman This is a message from the Museumpests List. To post to this list send it as an email to [email protected] To unsubscribe please look at the footer of this email. ----------------------------------------------------------- Denise - I think Gentrol would be a waste of chemical. Gentrol holds larvae in the larval state; it usually does not prevent eggs from hatching. The Alpine Dust would be a good choice as long as the elevator pit remains dry. Thomas A. Parker, PhD Pest Control Services, Inc. -----Original Message----- From: Denise Migdail <[email protected]> To: pestlist <[email protected]> Sent: Wed, Nov 2, 2011 3:12 pm Subject: [pestlist] Webbing Clothes Moths and Gentrol? This is a message from the Museumpests List. To post to this list send it as an email to [email protected] <mailto:[email protected]> To unsubscribe please look at the footer of this email. ----------------------------------------------------------- After tracking and mapping webbing clothes moths for several months, we have pinpointed our elevator shaft as a primary source. It housed a gradual build up of debris from eight years of service, which when inspected did contain larvae. We are now looking at having the elevator shaft floor thoroughly cleaned and sprayed. Our facilities provider has suggested using Gentrol, but we have only found it referenced with regards to beetles in the literature. Any comments on the efficacy of Gentrol for webbing clothes moths would be appreciated. We are also considering using an insecticide/desiccant combination - such as PyGanic, or Alpine Dust (two suggested by our facility providers). Denise Migdail Textile Conservator Asian Art Museum 200 Larkin Street San Francisco, CA 94102 ---------------------------------------------------------------------- To send an email to the list, send your msg to [email protected] <mailto:[email protected]> To unsubscribe from this list send an email to [email protected] <mailto:[email protected]> and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. 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