Anyway, time to try something new and bring in reinforcements.
Enter the mad scientist! This is my friend Jim from IEBA. He brought over his equipment for oxalic acid vapor treatment.
The oxalic acid powder is heated in a crucible by a heat gun and it shoots a vapor that we directed into the hives. It only kills mites on bees, not brood so I will need to treat weekly x 3. If we're successful, the mite counts will drop and the hives will grow and out-breed the mites. I will also re-queen later in the spring. We'll
see how it goes.