Just wondering on the idea of selectivly treating for mites vs. treating everything with one product. From mite counts I did I found hives with very light loads, some at or near treatment threashhold and a couple in bad shape. Thinking the benifit of treating in a few of the low mite count hives would be less than the gain of dimminishing the mites a little. For the hives in the middle of the range I wonder if softer treatments will do enough while saving the strong medicine for the couple infested hives. This would avoid treating with lower mite counts with chemicals that could cause later resistance but is there a risk of exposing drifting bees to lowered chemical doses as they drift between hives? Thanks for your thoughts.