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<p>Hello everybody,</p>
<p>well, 1,4-dichlorobenzene is now difficult to obtain.<br>However, there are insect sprays that contain pyrethroids (the most effective ones also contain insect growth regulators like Pyriproxyfen or Fenoxycarb).</p>
<p>I use these on objects that don't fit into the freezer.</p>
<p>On the other hand, is there a company near you that has a nitrogen chamber? Maybe The Montana Museum of Art & Culture?</p>
<p>You might be able to use that too.</p>
<p><br>Good luck<br>Joachim</p>
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<div><span style="color: rgb(148, 148, 148);"><span style="font-family: Arial; font-size: small;">Joachim Haendel</span></span></div>
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<div><span style="font-size: small;"><span style="font-family: Arial;"><span style="color: rgb(148, 148, 148);">Center of Natural Science Collections<br>of the Martin Luther University (ZNS)<br>- Entomological Collection -<br><br>Domplatz 4<br>D-06099 Halle (Saale)<br>Germany<br><br>Phone: +49 345 - 55 26 447<br></span><span style="color: rgb(148, 148, 148);">Email: joachim.haendel@zns.uni-halle.de</span></span></span></div>
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<div id="GroupWiseSection_1754122832942_659232D005F00000BEC929790EDC4731_" class="GroupWiseMessageBody"><span class="GroupwiseReplyHeader"><br>>>> Am 01.08.2025 um 19:24, Simon Moore <couteaufin@btinternet.com> schrieb:<br></span>I agree with Katrina for this as the 1,4 (or para) dichloro-benzene does kill off little critters effectively. I used to use it in taxidermy cases and entomology collections until it was banned from use in the UK being an organ-chlorine! It dissipates quite quickly and I find it more effective than naphthalene which was in UK mothballs and can make one feel woozy!<br><br>With all good wishes, Simon <br><br>Simon Moore MIScT, RSci, FLS, ACR<br>Conservator of Natural Sciences and Cutlery Historian.<br><br>www.natural-history-conservation.com<br><br><br>> On 1 Aug 2025, at 18:12, Jacqueline Miller <jmiller@rom.on.ca> wrote:<br>> <br>> Hello Katrina,<br>> I would adopt the second option, but I would not advise isoflurane. Instead, try 1,4-Dichlorobenzene (what is used in “mothballs” or toilet bowl deodorant).<br>> Hope you find this useful.<br>> Jacqui<br>> Jacqueline Miller, PhD (She/Her/Hers)<br>> Collections Technician 2 - DNH <br>> <br>> 100 Queen's Park<br>> Toronto, ON M5S 2C6<br>> 416 586 5769<br>> ROM acknowledges that this museum sits on the ancestral lands of the Wendat, the Haudenosaunee Confederacy, and the Anishinaabek Nation, which includes the Mississaugas of the Credit First Nation, since time immemorial to today.<br>> <br>> Le ROM reconnaît que le Musée est situé sur les terres ancestrales des Wendats, de la Confédération des Haudenosaunee et de la Nation Anishinabek, y compris la Première Nation des Mississaugas de Credit, et qu’ils occupent ces terres depuis la nuit des temps.<br>> From: Nhcoll-l <nhcoll-l-bounces@mailman.yale.edu> On Behalf Of Derieg, Katrina<br>> Sent: August 1, 2025 12:08 PM<br>> To: nhcoll-l@mailman.yale.edu<br>> Subject: [Nhcoll-l] Killing dermestids from large cervid skulls<br>> Some people who received this message don't often get email from katrina.derieg@mso.umt.edu. Learn why this is important<br>> [EXTERNAL EMAIL] DO NOT CLICK links or attachments unless you recognize the sender and know the content is safe.<br>> Hi folks,<br>> I'm looking for some advice on how to proceed with some large cervid skulls I've got in my bug colony. One is a bull elk with a full rack, the other is a mule deer buck, also with a full rack. I don't have a walk-in freezer and none of my freezers are large enough for these skulls with their racks. The skulls are clean and I need to move them out of the bug colony, but I'm not sure the best way to get rid of any stray bugs.<br>> Options I've considered:<br>> • <br>> Bagging them up with some dry ice (will sublimate fast though, a little pricy)<br>> • <br>> Bagging them up with isoflurane-soaked cotton (maybe not a good use of veterinary-grade drugs)<br>> <br>> But I am open to suggestions if anyone has dealt with something similar.<br>> Many thanks in advance!<br>> -Katrina<br>> KATRINA DERIEG (she/her)<br>> Curator | Museum Collections and Outreach Coordinator<br>> Phillip L. Wright Zoological Museum (UMZM)<br>> Health Science 104 | 32 Campus Drive | 406-243-4743<br>> katrina.derieg@umontana.edu | umzm@mso.umt.edu<br>> University of Montana<br>> On now, Auschwitz. Not long ago. Not far away. Tickets on sale now at rom.ca.À l'affiche : Auschwitz. Pas si longtemps. Pas si loin. Billets en vente sur rom.ca/fr.<br>> _______________________________________________<br>> Nhcoll-l mailing list<br>> Nhcoll-l@mailman.yale.edu<br>> https://mailman.yale.edu/mailman/listinfo/nhcoll-l<br>> <br>> _______________________________________________<br>> NHCOLL-L is brought to you by the Society for the Preservation of<br>> Natural History Collections (SPNHC), an international society whose<br>> mission is to improve the preservation, conservation and management of<br>> natural history collections to ensure their continuing value to<br>> society. See http://www.spnhc.org for membership information.<br>> Advertising on NH-COLL-L is inappropriate.<br><br><br>_______________________________________________<br>Nhcoll-l mailing list<br>Nhcoll-l@mailman.yale.edu<br>https://mailman.yale.edu/mailman/listinfo/nhcoll-l<br><br>_______________________________________________<br>NHCOLL-L is brought to you by the Society for the Preservation of<br>Natural History Collections (SPNHC), an international society whose<br>mission is to improve the preservation, conservation and management of<br>natural history collections to ensure their continuing value to<br>society. See http://www.spnhc.org for membership information.<br>Advertising on NH-COLL-L is inappropriate.</div></body></html>