My hives are also very strong.  Have not yet found a dead hive, but did have
some I had to feed.  Like some others, I did not treat last fall...and
worried every week!

Last year I did freeze drone brood an average of 3X per hive, and I almost
completely use screened bottom boards, but don't know that those were the
reasons why Varroa seemed non-existent last fall.

Lloyd
Lloyd Spear, Owner of Ross Rounds, manufacturer of comb honey equipment
for beekeepers and Sundance pollen traps.
http://www.rossrounds.com
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