I don't know how hard it is for large professional beekeepers to avoid
diseases and premature death of colonies, but from what I gather those of us
who use preventive medicine proceedures faired about as badly as those who
did nothing last year.
I am sticking by the Apistan ,terramycin. menthol practive with the added
step of using Mite Solution during the summer months. It is hard to guess
what will happen.
I am optimistic that with care and proper feeding to build up more strong
colonies this summer for next years production I will probably get through
the winter better this year. Also my insulated hive did better than my
uninsulated ones in the past.This winter all will get insulation which has
now been fabricated.