Quote Originally Posted by Acebird View Post
No but you treat on a regular bases so if you stop treating it is logical that your loss was due to mites.
I can't say for other peoples bees, but mine show some hygenic behavior. I can tell when mine hive mites by the capped brood pattern. Very seldom have to actually do a roll or drop test.

if you have hygenic bees, and the brood is solid, then you have no mites. Spotty brood can be a sign of mites.

I treat my hygenic bees when the patterns get to bad I treat. If I allow them to struggle with mites long, the SHB will overrun them.