Below is a calculator for estimating the Varroa mites in a colony. For the Mite Drop method it uses the NBU guidelines to take into account the month the count is performed. The Drone Uncapping and Sugar Roll/Alcohol/Co2 are not seasonally dependent but are affected by the size of either the drone population or the number of bees in the colony.
You can export your count summary to a PDF for adding to your hive records.
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Varroa Calculator & Tracker
Assess hive health and estimate mite levels.
Treatment only recommended when estimated mite population exceeds 2,500
New Record
Your Count Summary
Low Risk
0 est. mites
No treatment advised