> On the other hand, I find abundant evidence that to all but 
> aphids and perhaps earthworms (and  maybe some aquatic inverts), 
> that the neonic seed treatments are an environmental improvement 
> over the alternatives 
    
http://www.bayercropscience.co.uk/assets/Uploads/Poncho-EIS3.pdf

"No risk management necessary. When used according to the label, 
Poncho [clothandin] poses no unacceptable risk to earthworms."

https://www.syngenta-crop.co.uk/products/cruisersb/environmental-information.aspx

"CRUISER SB [thiamethoxam,]is of low toxicity to earthworms. No risk 
management is necessary as the risk to earthworms is low."

http://www.bayercropscience.com.au/resources/uploads/Bulletin/file7890.pdf

"Gaucho [imidacloprid] is applied to the seed prior to planting and does
not come into contact with beneficial species such as spiders, ants or
earthworms."

Paul Cherubini
El Dorado, Calif.

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