Winter losses here in Minnesota have been mostly low due to our very mild winter but some beekeepers have had heavy losses. In these cases they usually treated as usual for varroa with apistan but didn't get good control of the mites due to apparent fluvalinate resistance. So where varroa treatment worked the bees wintered well but where it didn't beekeeper's had heavy winter losses for the most part.
blane
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Blane White
MN Dept of Agriculture
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