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I've done some OAV last week on a hive that had 3% mite infestation and I'm not impressed by the number of mites that fell onto the paper I put on the bottom board: the first 2 days I found 10 each day then only 3. Could it be that the mites are carried away or it's just the failure of the treatment. Normally I should get some hundreds dead.
I'm not that eager to treat anyway. I will do a jar sampling in a week or so again. If this OAV is not that efficient I will use the dribble method on the first brood break. I have formic acid also but I'm afraid to use it after all the work I've done regarding queen rearing.
So far OAV is the only form of treatment I've used but I never had huge mite counts on it.
Who knows... probably I am treatment free and I don't even realize it
I'm not that eager to treat anyway. I will do a jar sampling in a week or so again. If this OAV is not that efficient I will use the dribble method on the first brood break. I have formic acid also but I'm afraid to use it after all the work I've done regarding queen rearing.
So far OAV is the only form of treatment I've used but I never had huge mite counts on it.
Who knows... probably I am treatment free and I don't even realize it