Does anyone have any ideas on limits of OAV exposure for a hive? I have just given my hives a 9th treatment, with treatments applied every 4-5 days. I feel that this is kind of extreme, but each treatment has dropped 1000-2000 mites until this last treatment, when the 48 hour drops were 555, 136, and 378 for my three hives. I have never seen anything like this; yet those numbers would suggest to me that the hives with the two largest drops at least need to continue treatment, but I am really hesitant to go further.