>
> "In late summer we've had samples consisting of over 80% fungal spores."
>

I see a similar phenomenon in the Calif foothills, with colonies collecting
up to 100% rust fungus spores.  See
 http://scientificbeekeeping.com/a-comparative-test-of-the-pollen-sub/
<http://scientificbeekeeping.com/a-comparative-test-of-the-pollen-sub/>
for details and photo.

I have frequently found the presence of these fungal spores in the guts of
bees from colonies exhibiting poor health.

-- 
Randy Oliver
Grass Valley, CA
www.ScientificBeekeeping.com

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