the NATIONAL HONEY REPORT for Tue, 28 January, 2020 has the following information, which I am posting without comment:
> So far into 2020, there have been reportedly dead out hive losses as high as 40% with commercial and hobbyists alike. In New England, hives normally lose 10 to 20% of their population due to normal winter ventilation issues. Overall in January, the colonies that have experienced good health were the ones that received regular and aggressive applications of mite treatments such as apiguard and formic acid.
https://usda.library.cornell.edu/concern/publications/m613mx60p
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