188.8.131.52.2.1. Powdered sugar
After step five of section 3.1.2. describing how to dislodge mites from honey bees kept in a jar, perform the following steps:
6. Count the mites fallen out of the jar (e.g. 43).
7. Count the number of bees in the sample washed (e.g. 310)
8. Divide the number of mites counted by the number of bees in the sample (310) and multiply by 100 to determine the number of mites per 100 bees (e.g. (43/310)x100 = 14.3 mites per 100 bees).
Pros: practical, low cost, non-destructive (the bees can be reintroduced in the colony and will be cleaned by their nestmates), environmentally friendly.