Information about Varroa

July 2016

Hopefully you’ve been successful with your Autumn varroa treatments and your hives have low numbers.  Best way to check is to take a sample of 300 bees and test for varroa using either icing sugar or alcohol.  Divide varroa count by 3 to get a percentage.  If over 2-3% you need to treat.  Refer to this article for a useful table.

It also has a good explanation of testing and control methods.  You’ll need to collect your bees for sampling on a warm day.

If you suspect that your treatment may have been ineffective due to varroa resistance, here are a couple of ways to check