I'm working on Imidacloprid annual useage numbers since when it was introduced.

Inteviewing people in the AG chem industry quickly yeilds comments like usage has sky rocketed in 
the last 2-3 yrs with seed treatments and proliferation of consumer products for lawn and garden. 

I do see that the scientific evidence is weak. However the amount of the material in the environment 
and the method of how the material affects insects makes it very hard to blow off Imidacloprid as 
harmless or of little concern to beekeepers. 

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