[Syrphidae] freeze desinfection of insect drawers
Christian Kehlmaier
Kehlmaier at web.de
Tue Oct 17 15:40:12 BST 2006
Uuups ... I thought I was writing to Frank directly.
Put the drawers into plastic bags and leave them in the freezer for 4-5 days. In case the drawers are infested, leave them at room temperature for a week after taking them out and freeze them a second time. That way, any eggs, that can well withstand such low temperatures, can hatch and the beasties will then get frozen in the second round.
Christian.
> -----Ursprüngliche Nachricht-----
> Von: Hoverfly discussion list <syrphidae at lists.nottingham.ac.uk>
> Gesendet: 17.10.06 15:30:50
> An: Hoverfly discussion list <syrphidae at lists.nottingham.ac.uk>
> Betreff: Re: [Syrphidae] freeze desinfection of insect drawers
> Hallo Frank
>
> Am besten du verpackst die Kaesten einzeln in Plastiktueten (gegen das Kondenswasser) und legst sie dann für 4-5 Tage in den Gefrierschrank. Danach ca. eine Woche bei Zimmertemperatur, damit evtl. Eier noch schluepfen koennen, und erneut fuer 4-5 Tage in die Gefriertruhe. Die Tiere duerften dabei keinen Schaden nehmen.
>
> Gruesse, Christian.
>
>
> > -----Ursprüngliche Nachricht-----
> > Von: Hoverfly discussion list <syrphidae at lists.nottingham.ac.uk>
> > Gesendet: 17.10.06 14:05:43
> > An: syrphidae at lists.nottingham.ac.uk
> > Betreff: [Syrphidae] freeze desinfection of insect drawers
>
>
> > Hello Syrphid friends!
> >
> > Can anybody provide me with information how to desinfect the drawers in
> > my syrphid collection with a standard freezer (-18 degrees C)? There are
> > no visible signs of pests yet, but I would like to be as safe as possible.
> >
> > I am also unsure about the details:
> >
> > How long do the drawers have to be in the freezer?
> > Does freezing damage the syrphid specimens?
> > How about condensed water after taking the insect drawers out of the
> > freezer?
> >
> > Maybe there are already some web resources on this? I would greatly
> > appreciate any links or hints on literature on this topic.
> >
> > Many thanks in advance!
> >
> > Best wishes from Berlin,
> >
> > Frank Dziock
> >
> >
> > --
> >
> > Prof. Dr. Frank Dziock
> > Fachgebiet Biodiversitätsdynamik
> > der TU Berlin
> > Sekr. AB 1
> > Rothenburgstr. 12
> > D - 12165 Berlin
> > Germany
> >
> > Tel: 030 â 314 71368
> > Fax: 030 â 314 71355
> >
> > http://www.tu-berlin.de/fb7/ioeb/biodiversitaet/
> >
> > "God in his wisdom made the fly, and then forgot to tell us why." Ogden Nash
> >
> > special issue on âBioindication and Functional Response in Floodplain Systemsâ out now!
> > published in International Review of Hydrobiology
> > http://www3.interscience.wiley.com/cgi-bin/jhome/60500251
> >
> >
> > _______________________________________________
> > Syrphidae mailing list
> > Syrphidae at lists.nottingham.ac.uk
> > http://lists.nottingham.ac.uk/mailman/listinfo/syrphidae
>
> --
>
> Christian Kehlmaier, M.A.
>
> work:
> State Natural History Collections Dresden
> Museum of Zoology
> Koenigsbruecker Landstrasse 159
> D-01109 Dresden
> Germany
> phone: 0049-(0)351-89 26 301
>
> privat:
> Boehmische Strasse 39
> D-01099 Dresden
> Germany
> 0049-(0)1577-39 39 348
>
> http://www.kehlmaier.de
>
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--
Christian Kehlmaier, M.A.
work:
State Natural History Collections Dresden
Museum of Zoology
Koenigsbruecker Landstrasse 159
D-01109 Dresden
Germany
phone: 0049-(0)351-89 26 301
privat:
Boehmische Strasse 39
D-01099 Dresden
Germany
0049-(0)1577-39 39 348
http://www.kehlmaier.de
_____________________________________________________________________
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