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Hello Jessica, I can’t answer most of your questions but diatomaceous earth is used for passive treatment of bed bugs and other insects. They physically have to crawl across the sediment for it to have effect, it scratches their undersides and ends up killing them. Exterminators will place it around trim, in corners, electrical outlets, anywhere that they may be hiding. Generally in treatment an insecticide or other poisonous substance is used as a more active treatment so you may want to research the types that were used at the time of treatment in your area for health and safety concern for staff. There is food grade diatomaceous earth so it isn’t in and of itself necessarily harmful to you beyond irritation to eyes or lungs even if this particular usage it isn’t food grade. The issue would be more if it’s ground into the collections or related concerns. Typical ‘waiting them out’ treatment can be up to two years. If they’re been sealed or isolated for the 10+ years since treatment it’s likely that there isn’t a concern but I would be personally very concerned as you sound like you might be. No good story ever started with, “So I found this bed bug……”. William Shepherd Collections Officer Swift Current Museum 44 Robert Street West Swift Current, Saskatchewan S9H 4M9 Phone: 306-778-4815 Fax: 306-778-4818 From: pestlist-ow...@museumpests.net [mailto:pestlist-ow...@museumpests.net] On Behalf Of Jessica Lian Pace Sent: September 8, 2017 12:25 PM To: pestlist@museumpests.net Subject: [pestlist] Bed bugs treated with diatomaceous earth This is a message from the Museumpests.net List. To post to this list send it as an email to pestlist@museumpests.net<mailto:pestlist@museumpests.net> To unsubscribe look at the footer of this email. ----------------------------------------------------------- Hello everyone, A curator is considering bringing in an archival collection consisting of paper and media materials that was treated for a bed bug infestation with diatomaceous earth 10+ years ago. We don't have much information on how the treatment was implemented. The problems with diatomaceous earth residue on collections materials aside, is it an effective means of treatment? Information on how long bed bugs and their eggs can remain dormant and how to best assess the efficacy of the remediation would also be greatly appreciated. Many thanks, Jessica -- Jessica Pace Preventive Conservator Barbara Goldsmith Preservation and Conservation Department NYU Libraries 70 Washington Square South New York, NY 10012 (212) 998-2518 ------------------------------------------------------------- To unsubscribe from this list send an email to imail...@museumpests.net<mailto:imail...@museumpests.net> and in the body put: "unsubscribe pestlist" Any problems email l...@zaks.com<mailto:l...@zaks.com> ------------------------------------------------------------- To unsubscribe from this list send an email to imail...@museumpests.net and in the body put: "unsubscribe pestlist" Any problems email l...@zaks.com