Sent to me off list--perhaps I was unclear:

> > Correct me if I'm wrong but it is my understanding that if Mites reach a
> certain threshold it doesn't matter what a Beekeeper does the colony will
> crash, if I'm right then early prevention
> would be of more value to me as I would save the colony but only loose
> maybe a couple frames of Honey.
>

I agree!  My question is not whether drone trapping is effective--there is
plenty of data to support that it is.  The question is what is the best
timing to remove it, and how many times?

Removing it if it doesn't contain enough mites would be a waste, and would
have little effect on the eventual mite population.  Not removing it at a
critical time might actually increase varroa levels.  We need more data to
fine tune the method!

Randy Oliver

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