I am in the middle of a OAV series where I am doing an OAV treatment every 5 days (planning on 3 treatments total). I did my second one this morning and as I was putting the mouse guard back on the hive I saw mites being flicked out of the hive. It was really cool to see, I never watched the entrance closely immediately after the other treatment so this was new to me and really fascinating. It was just a few moments after I removed the damp towel that sealed the entrance during the final 10 minute time period after removing the wand. I watched for a few minutes an saw at least 35-40 mites on the entrance landing area. I would assume this is normal, but I was surprised to see the dead mites being booted out so fast after the treatment. That really shows me that OAV does a great job of killing mites and doing it quickly.
Now the bittersweet part of that....
1) I am glad to be killing mites, but with that being my second OAV treatment in 5 days is it worrisome to have that many mites being flicked out the entrance right after Treatment? I did my last alcohol wash and it showed 1 mite but that was about six weeks ago. I wanted to use OAV to knock potential mite problems down as much as I can at this point. I know populations build quickly this time of year so I wondered how worried I should be.
2) with treating every 5 days, should I do more than three treatments? I am leery of removing boxes to do another alcohol wash to see where my numbers are since I don't want to disturb the propolis seals and the winter prep the bees have done if I don't have to.
3) Overall is this too little too late since I started in mid October? I should have down this earlier before the "winter bees" were being reared but did I completely miss the boat on this?