Killing varoa mites – formic acid treatment
During the last month I noticed that I got higher and higher varoa mite count in the bottom plate of the hive. Just before the last harvest I counted more than 100. After the last harvest I fed the bees with inverted sugar so they had something to feed on and then it was time to treat the bees with formic acid. This is a kind of harsh treatment and lots of bees will be killed but the hive will be almost cleared for mites afterwards. The procedure is simple. For a 12×10 box with 10 plates you need 3 ml of 60% formic acid per plate i.e. 30 ml […]