I've gotten to know 2 of the MD state inspectors now (one raises and sells queens) and both seem to be leaning, in their advice, towards me medicating in this situation. I am simply not sure it's necessary even if I were inclined to used Fumigillin or an alternative. It's getting up near 90 every day now (the usual Wash DC swelter) and I had hoped this, in addition the an overall improvement in the hives condition would help....is this a reasonable assumption? They've looked great for about a week now but this morning I observed some of the behavior that intitially concerned me again - fairly large numbers of bees milling outside the openning, many appearing irritable, indecisive, rubbing their faces, trembing, etc. I'm not remotely concerned with getting honey from this hive this year, only with promoting the health and longevity of the bees.