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Oxalic Acid Extended – great finish?

With the exception of one outlier, 4 colonies of 5 are practically liberated from varroa! After 55 days of OAE treatment overall impression, about 100 colonies looks very healthy and harmonious. Here is Nr 73, nice colony with queen 32 mated in Hallsberg at Tessel 2021. (=Elgon territory). 0% varroa as of BeeScanning.