>>I've been looking at varroa closely for twenty years, but can't see any positive side whatsoever.

I tend to think the same.  If we ultimately come out with bees that will handle varroa better due to, say, enhanced hygienic behavior or better immune response to vectored pathogens, this may help with foulbrood etc.  This would be very welcome but at what cost in selection/breeding.

Waldemar

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