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Percentage of adult bees infested by Varroa mites, detected by sugar shake test, during the pre-treatment period (July), after four treatment protocols (Apiguard®, Apistan®, Apivar®, and HopGuard®) (August) and final treatment of CheckMite® (September). Bars represent mean ± 1 SE. ANOVA significant levels are as follows: p < 0.05 *. The horizontal brackets indicate significant differences between the actual and predicted levels of Varroa mite infestation.
