"Bill Truesdell" wrote:
> Since the virus and Varroa are linked, an increase in Varroa
> "overpowers" the colony.
>
> Varroa is the problem. Otherwise we would monitor for the virus.

Are you assuming that viruses, particularly DWV or APV, are always present
if varroa are present?

My understanding is that many colonies survive high levels of varroa simply
because these viruses are not present.

Peter Edwards
[log in to unmask]
www.stratford-upon-avon.freeserve.co.uk/

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