Quote Originally Posted by Fusion_power View Post
This would not work. When one group of colonies becomes overwhelmed with mites, they will dwindle, then the healthy bees will rob out the dying colonies and in the process bring huge loads of mites home. The end result is a whole yard dead. If you want to do this, you will have to separate the bees far enough to avoid robbing.
It could work if you monitored fastidiously and treated any hive that became excessively infested before it was too weakened - and of course moving them into the treatment group at least until they were requeened with TF genetics. Using robber screens on all hives would also help. And you would want to use TF genetics in all hives as well I think.