>But has anyone done it [tested for residues in plants grown on previously
treated soil]?  If not, how was it decided, and by whom, that a two year
period was appropriate?

Yes, I've seen data from a number of such tests.  The two-year period, as
well as the ban itself, was a politcal decision, not a scientific one, so
reason may not apply.

>My point - in these settings, the direct surface EXPOSURE to the bee
> exceeded that of the translocation EXPOSURE.  I'd expect to see some of
>  the same
> for pesticides in soils, until they degrade.


Thanks for reminding us of this, Jerry! This would certainly apply in the
case of corn planting dust on the soil surface and vegetation.  Much less
so for residues from the treatments that actually were buried with the seed.

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

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