Re: Need help with heavy mite load
This is the first I am hearing of a 4x4 OAV treatment which obviously does not cover the same number of days as the other two recommended schedules. However, the schedules themselves, while based on math, are still arbitrary. I would treat every 4-5 days until the mite drop from the last treatment was near 0 if my hive was heavily infested. Or, treat once to knock down the phoretic mites and go with the Apivar strips. I don't understand the logic of sacrificing the bees to mites in order to get a fall honey crop. J, if the OAV is not getting the job done, go with something that will, like Apivar. Then resume OAV as a control treatment. Unless you are TF and doing your part to "build a better bee", there is no reason for a hive to die from mites with the tools we have at our disposal.
Thankfully, the bees are smarter than I am. They are doing well, in spite of my efforts to help them.