Formic Pro™ Efficacy Trial In the fall of 2017, the efficacy of Formic Pro™ to reduce infestations of varroa mite (Varroa destructor Anderson and Trueman) in colonies of honey bees (Apis mellifera L.) was tested. A total of 36 colonies were divided into three treatment groups. One treatment group (n = 12) received five separate doses of liquid formic acid at a concentration of 65% across a twenty day period, while the other two treatment groups were treated with strips of Formic Pro™ either with two strips for 14 days (n = 12) or two consecutive rounds of a single strip, each for 10 days (n= 12). The 65% liquid formic acid was used as a standard to compare the efficacy of Formic Pro¡ pads. All three treatments reduced mite infestations, but the Formic Pro™ treatments resulted in the greatest mite mortality during the treatment period. Mean mite drop in both Formic Pro™ treatment groups was significantly greater than the liquid formic treatment in the first post-formic “clean up” monitoring period (D+27 – D+33). Based on this trial, #FormicPro™ appears to be an effective tool for the control of varroa mite in Nova Scotia.
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