I have been using screened bottom boards on my hives with a sticky board underneath, and at the same time feeding sugar syrup with 1cc of essential peppermint oil per quart. Each hive has also been given a mixture of bees wax, canola oil, mineral oil, and peppermint oil, on a thin plastic sheet inserted into the entranced which they must track over, and thus distribute the oils around the hive. I have two hives which dropped about a hundred mites in two weeks, three hives that dropped 10, (two of these are new swarms) and two dropped zero (new packages from california). The bees seem healthy and are working hard. What kind of infestation do I have? Thanks.