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Elin -
 
Heat treatment for stored product pests in grain silos, food plants, and certain kinds of warehouses has been practiced on a large scale for decades.  The temperature needed to kill all stages of any insect is 130 degrees F. for 3 hours.  We're not talking about temperature ranges which would affect DNA.  Certainly large scale heat treatment of grain silos has not affected the grain's germination rates or its DNA.
 
Tom Parker


-----Original Message-----
From: Elin Ohlsson <[email protected]>
To: pestlist <[email protected]>
Sent: Wed, Oct 10, 2012 6:05 am
Subject: [pestlist] heat treatment effect on DNA

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We are having trouble with pest infestation in our herbarium and are considering heat treating instead of fumigation with toxic gases. (We are already working with cleaning the rooms, freezing and bagging of specimens but it is not enough). Is there anyone with experience of heat treatment in large areas or maybe has any documentation? We are mostly concerned about the effect on DNA.
 
Thanks for any information
 
Best regards,
 
Elin
 
Description: Beskrivning: Beskrivning: Description: Description: Description: Description: nrm_logo
 
Elin Ohlsson
Senior assistant
Department of Cryptogamic botany
08-519 541 52

[email protected]

Swedish Museum of Natural History
P. O. Box 50007 
SE- 104 05 Stockholm, Sweden
 
Krypto-S: http://www.nrm.se/botany/krypto-s
1 310 000 botanical specimens searchable through internet
 

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