>>  Early in the season, all the varroa are in drone comb. Later, when the populations
get higher, they get less choosy.

Pete, I question this statement. I also assumed the same.  But when I
actually went out and used a cappings fork to confirm, my observations did
not support that hypothesis.  In many drone frames, I couldn't find a
single mite, despite the clear presence of mites on the workers.  I didn't
check worker brood, but one might be safe to assume that a proportion of
the mites were there (as evidenced by the increasing mite infestation rate).

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

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