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Informed Discussion of Beekeeping Issues and Bee Biology

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Subject:
Re: Mite immigration
From:
Jose Villa <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Sat, 23 Jul 2016 10:21:42 -0500
Content-Type:
text/plain
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text/plain (13 lines) 
The main driver of the varroa problem in North America and possibly  
Europe is the preponderance of colonies in which mites have positive  
population growth, or an "r" higher than one.  Since this depends  
largely on bee traits, there are a lot of very bad genes out there.

If it only were possible to produce colonies with negative mite  
population growth, or an r less than 1.

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