As the labels for ALL the various weights of Nuvan strips state, they are to be applied only by a professional pest management person; not museum staff.
Tom Parker -----Original Message----- From: Alina Freire-Fierro <freirefie...@ansp.org> To: pestlist <pestlist@museumpests.net> Sent: Wed, Mar 2, 2011 4:06 pm Subject: [pestlist] Nuvan strips, experiences? This is a message from the Pest Management Database List. o post to this list send it as an email to pestlist@museumpests.net o unsubscribe please look at the footer of this email. ---------------------------------------------------------- Dear all, I was wondering whether any museum has had any experiences using the UVAN strips? And if so, for how long and for what insects were these trips the most effective? any thanks and cheers! Alina. ***Alina Freire-Fierro*** Collection Manager, PH Herbarium, Botany Department Academy of Natural Sciences*1900 Benjamin Franklin Parkway* hiladelphia, PA 19103. U.S.A. herbar...@ansp.org; freirefie...@ansp.org. www.ansp.org *W: 215-299-1157 *H: 215-667-7764* "When I observe the fate of botanists, upon my word I doubt whether to all them sane or mad in their devotion to plants" [Linnaeus, Critica otanica, 1737] ***Please do not print this message unless it is strictly necessary*** >>> On 2/1/2011 at 7:39 PM, in message 8cd9088d8162f72-1b08-d...@webmail-m113.sysops.aol.com>, bugma...@aol.com> rote: > To All Members of MuseumPests.Net - A recent inquiry came into the website from John Simmons about a hotograph of a very old Vapona resin strip found in a museum. The carboard nclosure was stained at the bottom; someone attributed this to phosphoric cid. Allow me to set the record straight: In 1948, the Shell Chemical Company obtained a patent for dichlorvos DDVP, Vapona), number 2,956,073. Later a patent was also obtained for echical grade Vapona. The Shell No-Pest Strip was introduced in 1963. This trip had problems with "bleeding" attributed to the plasticizer ormulation in the strip; hence the one found by Mr. Simmons is probably at least 0-years old. The stains were from the leaking plasticizers in this strip. Subsequently, sometime after 1963, the Texize Corporation bought the ights to the No-Pest Strip from Shell, reformulated it, and produced a esin strip which did not bleed. This modified polyvinyl chloride strip was DDVP (2,2-Dichlorovinyl dimethyl Phosphate) and was given patent number ,769,416. This strip was labeled for use in enclosed spaces at a rate of 1 trip per 1,000 cubic feet of space for all sorts of insects. The strip, when first introduced into a space, generates dichlorvos n about a week and a half at 120 parts per trillion in the ambient air. From his point, the strip gradually loses its generating power to 80 ppt at eek 4; 56 ppt at week 8, 37 ppt at week 12; and approximately 20 ppt at week 6. Any amount in excess of approximately 10 ppt will kill insects. A Texize o-Pest Strip therefore was effective for 4 months. On February 12, 1988, the EPA issued Dichlorvos; Notice of Initiation f Special Review. As a basis for this review, the EPA scientists roduced a scenario of a 70 kg individual breathing DDVP vapors for a 16 hour ay. Their calculations were way overstated, based on the amount a resin trip was capable of producing. What they really were concerned with was the se of DDVP liquid and fogging formulations used industrially. In response to the EPA request for comments from the general public, submitted a lengthy letter with citations in attempt to illustrate ow their calculations were way over-stated. I was attempting to save the esin strip for use in artifact and specimen protection against pests in museums nder certain situations. The amount generated by a resin strip simply idn't match the EPA's theoretical calculations of inhalation dosage for umans. In the Spring of 1989, in the Textile Conservation News Letter, haron Hammick gave a scathing report of the toxic effects of DDVP. nfortunately she confused the techican grade DDVP to what a resin strip could roduce. At the time, Canada, where she works, did not have the non-bleeding type esin strip, and therefore her conclusions were not based on what was vailable in the United States fro the Texize Corporation. In 1990, the EPA, which originally classified DDVP as a B-2 probable > carcinogen, downgraded this pesticide to a class C designation; a ossible carcinogen. Even with the downgrade, the EPA, in November, 1993 evoked the registration of DDVP for any use in the United States. A long battle between Amvac Corporation, the current holder of the atents for the resin strip, and the EPA ensued. In the interim, I sent everal detailed letters to EPA in support of the use of resin strips for the protection of museum collections, basically stating the controlled elease of minute amounts of DDVP into the ambient air was way below the level > considered harmful to humans. In addition, the human body readily etoxifies DDVP to the point where researchers find it difficult to run tests on umans with this compound. Finally EPA has now seen the resin strip, if properly used in useums, not to be a threat to human health. In the last few years, Amvac orporation has re-introduced the resin strip to our museum community with EPA egistration Number 5481-96, which is now called the Nuvan strip. It is available n a variety of different sizes and is labeled for museum use. There are > restrictions on the labels as to how long an individual can occupy a pace, which is being treated. In certain situations, there are no estrictions. My rule of thumb, if an infestation must be knocked out in a confined pace, introduce the strip or strips (depending on the cubic footage) for no ore than three weeks. Within that time, every form of insect life will e killed. This short period of time should have no ill effects on rtifacts or specimens. Do not simply put strips in cases and forget about them. ang the strips high because the DDVP is a bit heavier than air. If the oom is heated above room temperature, the time can be reduced somewhat. hese strips are quite effective against carpet beetle, silverfish, and ebbing clothes moth infestations. Note: In certain situations, the professional pest management ndustry uses Nuvan strips for bed bug control. I hope this message has given you all insight about the history of he "Shell" No-Pest Strip and its reintroduction as Nuvan resin strips nto the marketplace for specific use in museums. Thomas A. Parker, PhD President, Entomologist Pest Control Services, Inc. 469 Mimosa Circle Kennett Square, PA 19348 610-444-2277 www.museumpestcontrol.com -----Original Message----- From: Del Re, Christine <de...@mpm.edu> To: pestlist <pestlist@museumpests.net> Sent: Tue, Feb 1, 2011 2:53 pm Subject: RE: [pestlist] ID of pesticide package Agreed. That is an old DDVP pest strip * we still have some buried n our rather inaccessible light fixtures here******. From: pestlist-ow...@museumpests.net mailto:pestlist-ow...@museumpests.net] On Behalf Of bugma...@aol.com Sent: Tuesday, February 01, 2011 1:50 PM To: pestlist@museumpests.net Subject: Re: [pestlist] ID of pesticide package John - From the stains at the bottom of the white cardboard, it appears to e an old DDVP (Vapona) resin strip in an enclosure. It's very old and no onger volatilizing the pesticide, dichlorvos, into the air. It can be afely discarded into the regular trash. Thomas A. Parker, PhD President, Entomologist Pest Control Services, Inc. -----Original Message----- From: John E Simmons <simmons.jo...@gmail.com> To: pestlist <pestlist@museumpests.net> Sent: Tue, Feb 1, 2011 2:14 pm Subject: [pestlist] ID of pesticide package Can anyone help identify the pesticide likely to be in the package hown in the attached image? Thanks, John John E. Simmons Museologica 128 E. Burnside Street Bellefonte, Pennsylvania 16823-2010 simmons.jo...@gmail.com 303-681-5708 www.museologica.com and Adjunct Curator of Collections Earth and Mineral Science Museum & Art Gallery Penn State University University Park, Pennsylvania ------------------------------------------------------------- o send an email to the list, send your msg to pestlist@museumpests.Net To unsubscribe from this list send an email to mail...@museumpests.net and in the body put: unsubscribe pestlist" ny problems email l...@zaks.com
