I'm with mbc on this one. VSH and hygienic bees are not the same. I seem to remember Jeff Harris (Baton Rouge, VSH) saying that VSH bees do not uncap nitrogen frozen pupae and/or vice versa (or at least are no better than normal bees). His view is that VSH bees detect something volatile given off by Varroa damaged pupae.

One thing that worries me about Varroa resistance is the selection of less pathogenic mites, rather than 'better' bees. Has Ron Hoskins ever exposed his bees to a Varroa-infested hive from outside his area?

What about coordinated Varroa treatment? If everyone in an area treated all colonies simultaneously - for a full month with Apiguard or similar in the autumn and with OA in winter - it should leave the mites with nowhere to hide. It would have to be simultaneous and every colony because phoretic mites on drones or drifting workers mean that Varroa-free colonies are infested within days or at best weeks.

Not Varroa resistance I know, but I'm not sure that such a thing exists.