I've been reading about how some bees are learning to get rid of Varroa mites by cleaning them off one another. I realised I have done very little about varroa until I treated with Oxalic acid back before Christmas. I have decided to check on how infested the bees are by calculating the daily mite drop.
Mite fall onto the floor of the hive all the time so I have put an inspection board under the mesh floor and take it out regularly and count the varroa mites that are present divided by the number of days you left the board in the hive = the daily mite drop. Too many and you must treat the hive again in the spring.
There were six mites this morning, so we'll see how we go.
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