This has probably been discussed before, but I thought I'd post with the specifics of my situation.
Last year, I had an almost non-existent mite problem. My sticky board count was zero most days, and never went to double digits. Did not do a alcohol or sugar roll. I did treat the hive in early October anyway and at that time there was very little brood present (the queen had been missing for a while, and I combined my strong queenless hive with a weak queenright one after treating them both).
This year I did a sticky board count yesterday and it was 20 (24 hours). From what I read the number is still low, but much higher than last year. Right now I have a honey super on, so I don't want to treat.
My plan is to remove the honey super at the beginning of September and then treat with OAV. Should I treat once or twice? If so what's the best schedule?
thank you, as usual.