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Subject:	Re: Alcohol wash and natural drop correlation
From:	randy oliver <[log in to unmask]>
Reply To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:	Sun, 2 Sep 2012 16:40:08 -0700
Content-Type:	text/plain
Parts/Attachments:	text/plain (24 lines)

>The alcohol wash measures the number of mites per 100 bees and the natural
drop measures the number of phoretic mites in the hive.

Thanks for bringing this up Donald--one must account for the number of
frames of bees with stickyboards.  However, natural drop, during
broodrearing, in addition reflects the number of mites emerging from the
brood cells--live, dead, or injured, which may partially explain why the
counts go up and down so much from day to day.  Only during broodless
periods does it truly reflect only the number of phoretic mites.


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

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