First a brief background. About 5 weeks ago I tested hive with an alcohol wash and came out at 3% mites. I treated them with Formic pro 2 sachets for 14 days following all instructions. Had sticky board in after treatment was complete and saw mite drops of (10-12 mites per day). So it has been about 3 weeks since treatment ended now. Tonite I went out and did another wash. I suspected I did not have a good solid half cup of bees (300). Therefore I counted the corpses and only had 196 bees. Mite count was 12. That gives me 6.1% according to my math. So as you may imagine this creates a lot of questions, having fewer bees should not matter should it? How can I possibly have double what I had before Formic Pro in just a short time like this? Am I correct in thinking OAV once a week is now in order for a few weeks? Any thoughts on the whole situation would be appreciated, this will be my first winter and have been trying to do thing rite, this setback is a little depressing. Thankyou Tim