First year. I went most of the summer thinking I didn't have a mite problem. I got 2 nucs June 3rd and put them in 10 frame deeps. On June 25th I did a sugar roll with the State Bee inspector and we found no mites. Aug 15th did a 3 day sticky board count and found 2 per day in one hive and 7 per day in the other hive. According to local beeks that was low and in general "mites were not a problem around here this year". Sounds great, right? Sept 29th did another 3 day sticky board test and got 32 per day and >70 per day from the 2 hives. That now starts to sound like an issue. I tried to find out what the treatment threshold is around here but didn't get an answer but a recollection I had from a local meeting was either 50 per day or 50 per 3 days, I can't remember which, was stated. In either case it looked like I met the threshold. I treated both hives with OAV 3 times, five days apart and I was truly astounded by the mite drop. I was further astounded by the mite drop after the third treatment. I figured the first 2 treatments would wipe out most of them but the 3rd treatment seemed to give the greatest drop. Why? Were they the tail end of the mite population explosion?
If I inserted it correctly, here's a look at the sticky board from the 3rd treatment and this is the 24 to 72 hr mite drops, I cleaned off the 24 hr mite drop before thinking of taking the pic.
Is this a typical scenario, the huge mite drops after treating with a 50 per day mite count? Did I wait too long? Should I treat at a lower mite count number? Is the explosion in mite population from mid-Aug to late-Sept normal?
Overall it was a great first year. I got nearly 100 lbs of honey. The hives will overwinter in double deeps with a med super of honey/syrup on top. I just weighed them and they are roughly 140 to 150 lbs with lots of bees. I'll OAV treat again at Thanksgiving.