>I have a question about Varroa Mite resistance. Recently, I've seen in my reading so discussion about breeding bees that are more resistant to mites. Outwardly, that doesn't seem to make sense. I don't think you can breed dogs to be resistant to fleas and I don't think there is a mosquito resistant chromosome in humans.
Actually though, most dogs have immunity to mites. When a dog does NOT have immunity to mites, they get mange.
> huh How can you breed a bee strain to be resistant to mites?
Several behaviors and possibly some other genetic and physical things help with Varroa.
One would be grooming behavior which is getting the mites off. One would be guarding the door and not letting bees in who have mites. One would be uncapping brood that is infested with mites. One would be building smaller cells. One would be bees with shorter pre and post capping times. One would be to attack and bite mites. You see dogs attempt this with fleas, but the size of the dog's mouth and the fleas is not very compatible to this succeeding. But the size difference between bees and Varroa is much closer and bees can and do bite and kill mites. One would be a good immune system so they can survive the viruses that the mites spread.