"Bob Harrison" wrote:

> The simple answer to your post would be that when I control varroa I do
not
> have a virus problem. Only do I see a P.M.S. problem when varroa loads
> approach threshold.

Hello Bob

But this still leaves you on the treadmill of constantly trying to kill
varroa.  My original post asked whether any work was being done to identify
variation in susceptibility to viruses.  When I was in southern India last
January, they told me that Apis cerana had been devastated 10 years ago by
Thai sac brood virus.  However, populations have now recovered and TSB is no
longer a serious problem.  I wonder if we could achieve the same with APV
and DWV; varroa would then not be the problem that it is today for so many.

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

::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
-- Visit www.honeybeeworld.com/BEE-L for rules, FAQ and  other info ---
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::