Hi Gretchen, Can you refer us specifically to any of Tom Strang's research? I cannot see the work you refer when I search for it, but probably I am missing something. It is my understanding that the freeze thaw cycle degrades DNA by shortening the fragments that can be extracted, but I would love to know if that is wrong.
Thanks! Tonya ________________________________ From: pestlist@googlegroups.com <pestlist@googlegroups.com> on behalf of Anderson, Gretchen <anders...@carnegiemnh.org> Sent: Thursday, 1 October 2020 6:45 AM To: pestlist@googlegroups.com <pestlist@googlegroups.com> Subject: RE: [PestList] RE: Large scale pest treatment in the mid-Atlantic area The heat level that is recommended should not affect the fats and oils, nor the DNA – See Tom Strang’s research. From: pestlist@googlegroups.com <pestlist@googlegroups.com> On Behalf Of Pollack, Richard J Sent: Wednesday, September 30, 2020 4:21 PM To: pestlist@googlegroups.com Subject: Re: [PestList] RE: Large scale pest treatment in the mid-Atlantic area Freezing would seem a good option. If that is deemed impractical, consider encasing specimens in large plastic bags. Within each bag, enclose an IGR, the vapors of which may offer long term value. That should be more agreeable to the taxidermy mounts (they certainly won’t complain) than by fumigating with some toxicants. It might also be a good supplemental strategy even after freezing. The IGR won’t eliminate all damage, but it should decrease the population of pests long term. So, it is more of a slow death for the taxidermy mounts, delaying the inevitable. Richard J. Pollack, PhD HARVARD UNIVERSITY Environmental Health and Safety (EH&S) Senior Environmental Public Health Officer 46 Blackstone St. Cambridge, MA 02139 Office: 617-495-2995 Cell: 617-447-0763 www.ehs.harvard.edu<http://www.ehs.harvard.edu> richard_poll...@harvard.edu<mailto:richard_poll...@harvard.edu> From: 'Thomas Parker' via MuseumPests <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Reply-To: "pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>" <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Date: Wednesday, September 30, 2020 at 3:24 PM To: "pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>" <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> Subject: Re: [PestList] RE: Large scale pest treatment in the mid-Atlantic area One should never use heat for taxidermy mount disinfestation. Heat solubilizes fats and oils in the skins and ruins them. Freezing is acceptable. Tom Parker On Sep 30, 2020, at 12:14 PM, Anderson, Gretchen <anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org>> wrote: Hi Jean, I do not have a recommendation as to a specific company that has a freezer truck, however, I do recommend that you take a look at https://museumpests.net/solutions/<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2furldefense.proofpoint.com%2fv2%2furl%3fu%3dhttps-3A__museumpests.net_solutions_%26d%3dDwMFaQ%26c%3dWO-RGvefibhHBZq3fL85hQ%26r%3dGO7C3XN3WgFy2IP-bFBbnUs_CYntqj57Dprtl40-_KE%26m%3d-tb0xk4qADH5reqn6-Qpf6n4DEa0csFjfSzb1GOx_38%26s%3dnDdytPp1wCEdcRGPEEYtFLPuQbSWztJaMzIjt2QPBow%26e%3d&c=E,1,3m3vIdCUzJ1BuCiI4NHdVxa-uFEVD4Z-a8dSh49L4kZMo3ts4CL-igWdIwYCC46oirGC6wjEmLbIZ4kbtI_DRY6M8O_MnL0fVHD10KRQx0uko6dN2R1JGg,,&typo=1>. Pay particular attention to Low temperature Treatment (Freezing), Heat Treatment and Anoxic treatments. Fumigation with toxic gasses is not really a viable option, given local and federal regulations and bans of the chemicals that are actually effective. By following the recommendations described on these pages you should be able to find a solution that works for you. You will be able to ask the questions of the various companies, that will allow you to choose an appropriate company. I directed a museum natural history collection move in 1999. We used freezing on all specimens susceptible to pest infestation prior to the move. We had a walk in Freezer – so it was done in phases. After moving into the new facility we continued to monitor. We eliminated all pest activity on specimens (taxidermy, study skins etc). We could have shortened the process had we used freezer trucks. When you are researching this, check into companies that use heat treatments – this is more common now because they use it against bed-bugs. Follow the guidelines on the Heat treatment page to protect your specimens. For anoxic, I believe there are companies who rent out CO2 Bubbles. Remember that anoxic will take longer than either heat or freeze. Good Luck Gretchen Anderson Conservator Carnegie Museum of Natural History 5800 Baum Blvd. Pittsburgh, PA 15213 anders...@carnegiemnh.org<mailto:anders...@carnegiemnh.org> (412)665-2607 From: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> <pestlist@googlegroups.com<mailto:pestlist@googlegroups.com>> On Behalf Of Jean Woods Sent: Wednesday, September 30, 2020 10:48 AM To: pestlist@googlegroups.com<mailto:pestlist@googlegroups.com> Subject: [PestList] Large scale pest treatment in the mid-Atlantic area Hi, We’re about to embark on a major exhibits renovation project and we would like to pest treat all of the taxidermy that is coming off exhibit and going back into storage. This includes numerous large animals (antelope, bears, large cats) and we do not have a freezer large enough to treat them in. We’d ideally like to avoid shipping all of these specimens due to the risk of damage. We are looking at either freeze treatment or fumigation (which I’m sure won’t be a good option for everyone on the list but it has some advantages in our situation that we can’t ignore). We’ve pretty much eliminated anoxic treatment due to its slowness and technical complexity. I’m wondering if anyone in the mid-Atlantic region has experience with a vendor who is able to bring a truck capable of either freeze treatment or fumigation onsite? We have plenty of space to park a truck and feel that moving specimens into and out of a truck will be much safer than shipping them to a facility for treatment. I’m also interested in hearing from anyone who has done this at their facility so I can get any advice they might have to offer. Thanks for any suggestions! Jean Jean L. Woods, Ph.D. Phone: 302-658-9111 x314 Curator of Birds Fax: 302-658-2610 Delaware Museum of Natural History jwo...@delmnh.org<mailto:jwo...@delmnh.org> P.O. 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