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Date:	Sun, 5 May 2013 07:41:28 -0700
Reply-To:	Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Subject:	Re: European Commission to proceed with plan to better protect bees.
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From:	randy oliver <[log in to unmask]>
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>But given the half-lives of these substances in soil, how long would the
moratorium have to be before we really have some valid data.

Would depend upon the binding affinity of the insecticides and their
degradation products.  Since bees don't eat soil, any residues in the soil
would need to be translocated by the plants into either nectar or pollen.
 Residue levels in those products are easily measured.
-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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