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We have big problems with the reinvasion of varroa mites... The formic acid treatment seemed to work well. At least it killed 2,500 mites... But the queen stopped laying eggs for a while. Otherwise, I would have given the colony a new dose of formic acid. I took samples of bees (200-300 bees)...

Most hobby beekeepers in Denmark use drone brood removal during the season, formic acid after the last honey harvest, and then around December oxalic acid dribble. I use drone brood removal, formic acid in September (140 ml 60% in Nassenheider), and instead of oxalic acid I use lactic acid...

Even the members of the board of the local beekeeping club cannot decide, so it will be our "president" who decides which week it will be. I am so tired of losing my strongest colonies to varroa, so I am ready to accept whatever he suggests... And I have the feeling that most of the beekeepers...

Hi all, I am from Denmark, and I have my bees in Copenhagen, where we are many hobby beekeepers treating against varroa mites at different times. The photos are similar to my own hives and others where the colony died due to varroa and acute bee paralysis / deform wing virus... You can see the...