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Regarding this topic, I was curious if anyone knew of references about the effectiveness (or lack of) of dry heat (as in lab ovens) for these purposes and when/why it began to be phased out. Apart from making specimens prone to damage due to excessive drying, I was wondering if this had any demonstrated effect on preventing psocopterans and dermestids. --- Ana Dal Molin about.me/adalmolin PSA I'm migrating my mail and docs to [log in to unmask] this year. I have access to this account until December. Until then, I can be reached at both gmail and TAMU. On Thu, Feb 23, 2017 at 3:00 AM, ECN-L automatic digest system < [log in to unmask]> wrote: > There are 7 messages totaling 1143 lines in this issue. > > Topics of the day: > > 1. freezing drawers for pest control (7) > > ---------------------------------------------------------------------- > > Date: Wed, 22 Feb 2017 07:20:31 -0600 > From: [log in to unmask] > Subject: Re: freezing drawers for pest control > > Hi Richard > > I have had the experience that the glue holding the unit trays together > sometimes comes loose . No problems with the specimens or drawers > themselves so far, although I worried about specimens coming off points. > > Jim > > We are receiving some major donations, some of which have had some > > dermestid damage. We have regular freezers as well as an ultra-low > > freezer. Does anybody know of adverse effects of putting drawers of > > specimens in an ultra-low freezer before the drawer is brought into > > museum? > > > > > > > > -- Richard L. Brown > > Mississippi Entomological Museum > > Dept. Biochemistry, Molecular Biology, > > Entomology & Plant Pathology > > Box 9775 (100 Old Highway 12) > > Mississippi State, MS 39762 > > PH: 662-325-2990 > > Cell: 662-694-0174 > > > > > > > > > -- > James B. Whitfield > Department of Entomology > 320 Morrill Hall > 505 S. Goodwin Avenue > University of Illinois > Urbana, IL 61801 > http://www.life.illinois.edu/whitfield > > ------------------------------ > > Date: Wed, 22 Feb 2017 14:08:32 +0000 > From: "Miller,Jacqueline Y" <[log in to unmask]> > Subject: Re: freezing drawers for pest control > > We have had a similar experience here. The glue is the problem. Either > freezer is very effective if drawers are treated over a number of days. > > Jackie Miller > > -----Original Message----- > From: Entomological Collections Network Listserve [mailto: > [log in to unmask]] On Behalf Of [log in to unmask] > Sent: Wednesday, February 22, 2017 8:21 AM > To: [log in to unmask] > Subject: Re: freezing drawers for pest control > > Hi Richard > > I have had the experience that the glue holding the unit trays together > sometimes comes loose . No problems with the specimens or drawers > themselves so far, although I worried about specimens coming off points. > > Jim > > We are receiving some major donations, some of which have had some > > dermestid damage. We have regular freezers as well as an ultra-low > > freezer. Does anybody know of adverse effects of putting drawers of > > specimens in an ultra-low freezer before the drawer is brought into > > museum? > > > > > > > > -- Richard L. Brown > > Mississippi Entomological Museum > > Dept. Biochemistry, Molecular Biology, > > Entomology & Plant Pathology > > Box 9775 (100 Old Highway 12) > > Mississippi State, MS 39762 > > PH: 662-325-2990 > > Cell: 662-694-0174 > > > > > > > > > -- > James B. Whitfield > Department of Entomology > 320 Morrill Hall > 505 S. Goodwin Avenue > University of Illinois > Urbana, IL 61801 > http://www.life.illinois.edu/whitfield > > ------------------------------ > > Date: Wed, 22 Feb 2017 09:26:24 -0500 > From: luciana <[log in to unmask]> > Subject: Re: freezing drawers for pest control > > Hey Rich, > > We've been freezing everything that comes in the collection for 5 years > now without any noticeable effect on drawers or UTs. Everything that > goes in the freezer (-40C) gets placed into heavy duty plastic bags. > When we remove the drawers from the freezer we let them sit for 2 days > in the bags until they are completely dry. We leave the drawers in the > freezer for 2 days, remove, let them sit for 2 days, put them back for > another 2-3 days. > > BTW, we attach the foam to UTs with (very) hot melt glue. > > I keep the material that had any signs of infestationunder observation > and so far no re-infestation has occurred after freezing. > > Hope this helps! > -- Lu > > > > On 2/21/2017 11:01 PM, Brown, Richard wrote: > > We are receiving some major donations, some of which have had some > > dermestid damage. We have regular freezers as well as an ultra-low > > freezer. Does anybody know of adverse effects of putting drawers of > > specimens in an ultra-low freezer before the drawer is brought into > > museum? > > > > > > > > -- Richard L. Brown > > > > Mississippi Entomological Museum > > > > Dept. Biochemistry, Molecular Biology, > > > > Entomology & Plant Pathology > > > > Box 9775 (100 Old Highway 12) > > > > Mississippi State, MS 39762 > > > > PH: 662-325-2990 > > > > Cell: 662-694-0174 > > > > > > > > -- > > *Luciana Musetti, PhD* > Curator, Triplehorn Insect Collection > *Arts and Sciences* | Dept. EEOB > 1315 Kinnear Road, Columbus, OH 43212-1157 > Office 614-292-2730 | [log in to unmask] | insects.osu.edu > ------------------------------------------------------------------------ > *Facebook*: go.osu.edu/osuc-fb | *Flickr*: go.osu.edu/osuc-flickr > Follow @osuc_curator on *Twitter* | Follow @osuc_curator on *Instagram* > > ------------------------------ > > Date: Wed, 22 Feb 2017 15:46:57 +0000 > From: Andrew Brower <[log in to unmask]> > Subject: Re: freezing drawers for pest control > > Hi Rich, > > We did this pretty routinely at OSU. Our protocol was in the -80 > overnight, out and up to room temp, then back in again for another day or > so. Once or twice the glass on the top of a drawer cracked, but you could > probably prevent that by putting a piece of cardboard on it to keep it from > defrosting too quickly. > > Just make sure that the drawers are well-sealed, and that they are back up > to room temperature before you open them, to avoid condensation on the > specimens. > > Andy > > Professor Andrew V. Z. Brower > Evolution and Ecology Group > Dept. of Biology, Box 60 > Middle Tennessee State University > Murfreesboro, TN 37132 > > (615) 898-2064 > > > > From: Entomological Collections Network Listserve <[log in to unmask]< > mailto:[log in to unmask]>> on behalf of "Brown, Richard" < > [log in to unmask]<mailto:[log in to unmask]>> > Reply-To: "Brown, Richard" <[log in to unmask]<mailto: > [log in to unmask]>> > Date: Tuesday, February 21, 2017 at 10:01 PM > To: "[log in to unmask]<mailto:[log in to unmask]>" < > [log in to unmask]<mailto:[log in to unmask]>> > Subject: freezing drawers for pest control > > We are receiving some major donations, some of which have had some > dermestid damage. We have regular freezers as well as an ultra-low > freezer. Does anybody know of adverse effects of putting drawers of > specimens in an ultra-low freezer before the drawer is brought into museum? > > > > -- Richard L. Brown > Mississippi Entomological Museum > Dept. Biochemistry, Molecular Biology, > Entomology & Plant Pathology > Box 9775 (100 Old Highway 12) > Mississippi State, MS 39762 > PH: 662-325-2990 > Cell: 662-694-0174 > > > ------------------------------ > > Date: Wed, 22 Feb 2017 20:38:01 +0000 > From: "Furth, David" <[log in to unmask]> > Subject: Re: freezing drawers for pest control > > I started this at USNM in 1995 after some research. I gave a couple talks > at ECN a while ago about freezing. Minus 25C will kill anything we need to > worry about. No need to bag or repeat freeze - cellulose will reabsorb any > moisture. But after freezing do leave drawers, etc. out for enough time for > them to re-acclimate - don't open them. > We also talk about this in the Entomology Collections Management Workshop. > ________________________________ > From: Entomological Collections Network Listserve [[log in to unmask]] > on behalf of Brown, Richard [[log in to unmask]] > Sent: Tuesday, February 21, 2017 11:01 PM > To: [log in to unmask] > Subject: freezing drawers for pest control > > We are receiving some major donations, some of which have had some > dermestid damage. We have regular freezers as well as an ultra-low > freezer. Does anybody know of adverse effects of putting drawers of > specimens in an ultra-low freezer before the drawer is brought into museum? > > > > -- Richard L. Brown > Mississippi Entomological Museum > Dept. Biochemistry, Molecular Biology, > Entomology & Plant Pathology > Box 9775 (100 Old Highway 12) > Mississippi State, MS 39762 > PH: 662-325-2990 > Cell: 662-694-0174 > > > ------------------------------ > > Date: Wed, 22 Feb 2017 20:39:38 +0000 > From: "Furth, David" <[log in to unmask]> > Subject: Re: freezing drawers for pest control > > Sorry, I forgot to mention 48 hours is usually long enough at minus 25C. > ________________________________ > From: Entomological Collections Network Listserve [[log in to unmask]] > on behalf of Brown, Richard [[log in to unmask]] > Sent: Tuesday, February 21, 2017 11:01 PM > To: [log in to unmask] > Subject: freezing drawers for pest control > > We are receiving some major donations, some of which have had some > dermestid damage. We have regular freezers as well as an ultra-low > freezer. Does anybody know of adverse effects of putting drawers of > specimens in an ultra-low freezer before the drawer is brought into museum? > > > > -- Richard L. Brown > Mississippi Entomological Museum > Dept. Biochemistry, Molecular Biology, > Entomology & Plant Pathology > Box 9775 (100 Old Highway 12) > Mississippi State, MS 39762 > PH: 662-325-2990 > Cell: 662-694-0174 > > > ------------------------------ > > Date: Wed, 22 Feb 2017 17:19:50 -0500 > From: luciana <[log in to unmask]> > Subject: Re: freezing drawers for pest control > > Ice accumulation in the freezer will damage the drawers if not bagged > (had that happen here).Excess moisture may cause the lids to warp. > Repeated hydration and drying process over the years may cause joints to > come apart(I got this from a carpenter). By bagging I don't have to > worry about it. > -- Lu > > On 2/22/2017 3:38 PM, Furth, David wrote: > > I started this at USNM in 1995 after some research. I gave a couple > > talks at ECN a while ago about freezing. Minus 25C will kill anything > > we need to worry about. No need to bag or repeat freeze - cellulose > > will reabsorb any moisture. But after freezing do leave drawers, etc. > > out for enough time for them to re-acclimate - don't open them. > > We also talk about this in the Entomology Collections Management > Workshop. > > ------------------------------------------------------------------------ > > *From:* Entomological Collections Network Listserve > > [[log in to unmask]] on behalf of Brown, Richard > > [[log in to unmask]] > > *Sent:* Tuesday, February 21, 2017 11:01 PM > > *To:* [log in to unmask] > > *Subject:* freezing drawers for pest control > > > > We are receiving some major donations, some of which have had some > > dermestid damage. We have regular freezers as well as an ultra-low > > freezer. Does anybody know of adverse effects of putting drawers of > > specimens in an ultra-low freezer before the drawer is brought into > > museum? > > > > > > > > -- Richard L. Brown > > > > Mississippi Entomological Museum > > > > Dept. Biochemistry, Molecular Biology, > > > > Entomology & Plant Pathology > > > > Box 9775 (100 Old Highway 12) > > > > Mississippi State, MS 39762 > > > > PH: 662-325-2990 > > > > Cell: 662-694-0174 > > > > > > > > -- > > *Luciana Musetti, PhD* > Curator, Triplehorn Insect Collection > *Arts and Sciences* | Dept. EEOB > 1315 Kinnear Road, Columbus, OH 43212-1157 > Office 614-292-2730 | [log in to unmask] | insects.osu.edu > ------------------------------------------------------------------------ > *Facebook*: go.osu.edu/osuc-fb | *Flickr*: go.osu.edu/osuc-flickr > Follow @osuc_curator on *Twitter* | Follow @osuc_curator on *Instagram* > > ------------------------------ > > End of ECN-L Digest - 21 Feb 2017 to 22 Feb 2017 (#2017-13) > *********************************************************** >