[Nhcoll-l] Pest extermination with really big objects

[Fabian Neisskenwirth]

Dear Adrian,

did you check with some other museum in your location if they have a 
nitrogen chamber?

You might try to reach out with some other conservators from cultural 
heritage. This method is very common for treating large object like 
furniture.

Here is a German company that offers a lot of great services and might 
know some contact in Sweden: 
https://llfa.eu/conservation/pest-management.html


All the best!

Am 08.09.25 um 14:21 schrieb Adrian Lenninger:
>
> Hello!
>
> We at the Swedish Museum of Natural History are moving material, 
> mostly bones and mounted mammals, from one external storage facility 
> to another. The facility that we are evacuating is riddled with pests, 
> mainly the dermestid Trogoderma angustum, so everything has to undergo 
> some sort of pest managing procedure before installation at the new place.
>
> Unfortunately, a few bone objects are too big to fit in available 
> freezing containers or our own walk-in freezers, and we are struggling 
> to find a way to kill of pests that are sure to reside in the objects. 
> The biggest object is a sperm whale skull measuring 275 * 590 cm at 
> the base with a height of 215 cm.
>
> We have tried to find businesses that might dispose of huge freezers 
> without any luck, and we have failed to find clever ways of tilting 
> the objects in to the freezing containers.
>
> Does anyone have any ideas here? All thoughts are welcome as we really 
> don´t know what to do at this point. If you have worked with 
> fumigation, we are interested in what compounds where used and if you 
> were happy with the results.
>
> Best regards,
>
> Adrian Lenninger
>
> *Adrian Lenninger*
>
> Förste assistent
> ZOO
> Naturhistoriska riksmuseet
> Box 50007 | 104 05 Stockholm
>
> Logotyp för Naturhistoriska Riksmuseet
>
> Naturhistoriska riksmuseet, Forskar, Bevarar och Förklarar, NRM.SE
>
>
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-- 
*Fabian Neisskenwirth*
Restaurator/Präparator

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