Hey I have not read all of this. And really do not know how this works but....
I run 1800 colonies without mite treatment. Last hard chemicals 2003. Oxalic 2004 and 05.
Some apigaurd 2007. Match my neighbors crops. Send bees toalmonds. In forty years
have NEVER bought outside bees other than breeder queens.
All you nonbelievers - it can be done. I keep bees like I did pre-mites.