I'm not a corn farmer, but my understanding is
the corn plants shed pollen for only 1 week durimg
the growing season, hence I would guess the pollen 
would be  available to the bees for only 1 week?   

I also understand that although sweet corn may be
sprayed a few times with insecticides, sweet corn 
makes up only a tiny fraction of the corn acreage 
grown in the Midwest, hence the vast majority of 
the corn is never sprayed.  

Paul Cherubini	
El Dorado, Calif.

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