Hi Pete, thanks and yes I heard of the mitezapper but it kills everything. My objective is to keep the drones alive and fertile but just kill the mites. I'd like to do lots of frames at a time in a controlled environment.  I have a box that will precisely heat hanging frames within a degree or so. I may just have to try it. 


From Zachary's site:

> The electricity produces enough heat to kill both the pupae and the varroa mites, the bees will clean the frame within 72 hours.

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