>
> > The product did not break down in manure even after a couple of years
> and when manure was applied to allotments, greenhouses,  and other
> vegetable growing areas it wiped out crops
>

There was a similar problem here in Calif several years ago when "organic"
compost was made from grass clippings from lawns treated with an herbicide.
 Killed all the planted seedlings.

Re bioaccumulation, contrary to the old organochlorines, which persisted in
animal fat and were passed up the food chain, imidacloprid is quickly
metabolized in bees, with a half life of about 4 hours.

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

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