> Some of the things I have read claim that by 45 days [after
> planting neonic coated seeds] there are no detectable levels 
> left.

In the upper Midwest USA, neonic coated soybean seeds are typically
planted in late April/early May.  By early July the neonic in the soybean
plant tissues no longer effectively suppresses soybean aphid pest 
populations.  

Here’s a 4 minute video by the owners of a chain of pesticide dealerships
based in South Dakota that explains why soybean aphid populations
can explode in July - Sept. in soybean crops that were grown from neonic 
coated seed.  

https://www.youtube.com/watch?v=I3ObFVEf1z4

Paul Cherubini
El Dorado, Calif.

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