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Informed Discussion of Beekeeping Issues and Bee Biology

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Subject:
Re: counting varroa
From:
randy oliver <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Sat, 14 Mar 2015 07:30:59 -0700
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>
> >Is there any valid means of counting varroa on the bees in a colony that
> did
> over the winter?
>

To refine Charlie's post, pull out the brood frame upon which the bees last
clustered.  Look for an area with a scattering of dead sealed brood or
emerging bees.  Inspect the "ceilings" of the cells in the immediate
vicinity for the white guanine deposits.  If present, it is an indication
that the colony died from an excess of varroa.

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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