I have a medium-size hive (3.5 supers of 8 frame mediums) of Italian bees that I started from a package last spring. I performed approximately four OAV treatments to in the late summer and fall. I waited until a few days past Thanksgiving for the final treatment (when there is very little brood). I treated them Sunday. Now, 48 hours later I did a mite drop count and found approximately 300 mites. Although I am only a first year beekeeper this was more than I anticipated.
Should I do a follow up treatment in a few days? I appreciate any feedback. I would never have made it through the first year without this forum!