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Author Topic: Denmark way against varroa  (Read 1372 times)

Offline Finsky

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Denmark way against varroa
« on: November 27, 2005, 12:44:49 AM »
main varroa treatment is the use of evaporation of formic acid right after the honey harvest in August – September and then a late treatment in October with oxalic acid trickling, combined with a spring treatment.