----- Original Message ----- 
From: "randy oliver"

> I have been very curious as to whether this effect could be part of the
> cause for colony troubles in corn and sunflower, both here and in Europe.

It could be, IMO more likely to be the poor quality of the pollen from
these sources.

Again IMO, unless the nutritional status of the bees is known, any research
is suspect, or at best difficult to interpret, dare I say impossible.

Geoff Manning

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