While I don’t see heavy infestation of mites, (I just do visual check of drone brood and bees), there is a very large mite on the thorax of one of my queens. I had treated with powdered sugar earlier, and have just installed Apistan for the first time last week. ´Disappointed´ with my bees for not attending to their queen better! Did not want to injure her by an attempt at removal.

Is she likely to die as a result? Do mites migrate frequently from bee to bee?