What was really surprising to me was the claim of near absence of DWV!  I'd
like to see confirmation.

Also the conflicting data on fallen live and dead mites--one assay
indicated that nearly all the fell did not move; the other that a large
proportion were still alive.
The above bring up a longstanding question of mine re mite damage due to
biting.  Healthy mites do not appear to normally fall to the hive floor.
So can we assume that most mites that we see on sticky boards were dying
when they originally lost their grip on a bee, and were bitten on their way
down, as opposed to being injured while they were still healthy?

And the author misused the word "tolerance."  If the mite levels remained
low, that would indicate "resistance."

The above said, I'm not disputing that the bees there are exhibiting
resistance--I'm simply questioning some of the author's interpretations.

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

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