This is a message from the Museumpests List. To post to this list send it as an email to pestlist@museumpests.net To unsubscribe please look at the footer of this email. ----------------------------------------------------------- I just took a look at the Gentrol product label - you are right.
It seems that cockroaches and bedbugs exposed to Hydroprene while undergoing instar stages of incomplete metamorphosis are rendered sterile as adults. According to the label, Hydroprene actually kills insects undergoing complete metamorphosis at the pupae stage. Obviously, not all of the pupae will be killed by the application, which will result in some or most of the upcoming generation being sterilized. I still say it’s worth a shot as part of a layered approach. From: ad...@museumpests.net [mailto:ad...@museumpests.net] On Behalf Of bugma...@aol.com Sent: Thursday, November 03, 2011 12:23 PM To: pestlist@museumpests.net Subject: Re: [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 pestlist@museumpests.net To unsubscribe please look at the footer of this email. ----------------------------------------------------------- An insect growth regulator will not affect adult moths; it may however affect pupation into an adult, sometimes resulting in malformation of the adult and/or sterilization. Tom Parker -----Original Message----- From: Jones, Robert (Ryan) (Ryan) <rjo...@cwf.org> To: 'pestlist@museumpests.net' <pestlist@museumpests.net> Sent: Thu, Nov 3, 2011 11:42 am Subject: RE: [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 pestlist@museumpests.net<mailto:pestlist@museumpests.net> To unsubscribe please look at the footer of this email. ----------------------------------------------------------- Thanks for this post - I was just corrected on a misconception I had between the active ingredients of Gentrol and another similar product named Precor, which is used for flea sterilization. It had always been my assumption that Hydroprene was developed for insects that went through incomplete metamorphosis (like bed bugs and cockroaches), and that Methoprene was designed for insects that went though complete metamorphosis (like fleas). Since Dermestids, Clothes moths, and most other heritage-eaters go through complete metamorphosis, I assumed that Precor would be the choice to use if working with an IGR in a museum setting. Interestingly enough, there is a 3rd option out called Nylar that claims to work for both types of insect growth patterns. As far as the use of the IGR’s in the elevator shaft, I agree with Tom that they will have limited effect on the juvenile population. A secondary benefit of using the product, however, would be the sterilization of at least some of the existing adult population. If you suspect there are a significant number of adult moths left in the building, the use of IGR’s might be justified. I also highly recommend Alpine. I used it in treating yellow jacket nests this year (which are historically problematic) and found it to be highly effective. It has a great one-two punch, and is non-repellant, which will help contain the infestation rather than scattering it. From: ad...@museumpests.net<mailto:ad...@museumpests.net> [mailto:ad...@museumpests.net<mailto:ad...@museumpests.net?>] On Behalf Of bugma...@aol.com<mailto:bugma...@aol.com> Sent: Wednesday, November 02, 2011 6:58 PM To: pestlist@museumpests.net<mailto:pestlist@museumpests.net> Subject: Re: [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 pestlist@museumpests.net<mailto:pestlist@museumpests.net> 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 <dmigd...@asianart.org<mailto:dmigd...@asianart.org>> To: pestlist <pestlist@museumpests.net<mailto:pestlist@museumpests.net>> 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 pestlist@museumpests.net<mailto:pestlist@museumpests.net> 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 pestlist@museumpests.Net<mailto:pestlist@museumpests.Net> To unsubscribe from this list send an email to pestlist@museumpests.net<mailto:pestlist@museumpests.net> and in the subject put: "unsubscribe" - no quotes please. You are receiving the Pestlist emails in standard mode. 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