There is some work being done around it. A little bit is being done in Canada; more of it is done in the U.S. But there is selection of traits for breeding queens for resistant stock, resistance to mites, and hygienic behaviour. It has been going on for years, and it has not been developed far enough yet to bring it to a commercial level.
Realistically, will it? I don't know. We import into Alberta about 100,000 queens a year, I believe, and we need them in May. Can a large commercial queen producer achieve that with genetic selection and hygienic behaviour selection? I'm not a queen breeder. I don't know, but there is work being done on it.