Regarding oxalic acid damage, will be interesting to hear how many times
those beekeepers with CCD
used oxalic to control mites over the course of the year. Did they use only
once or many times? I like to use minimum treatments necessary to achieve
results, I have found more is not always better with IPM. I found when using
Apistan that the majority of the mite knockdown through my screen bottoms
occurred within 4-5 days and I didn't need to leave on longer for my hives to
survive winter.
Jerry Wallace
Atlanta, Ga
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