> Yes Peter, this is the opinion of Fries et al.  ...but the document you cite ...has some other interesting nuggets.

Which I already posted and discussed. They agree with my conclusion that little has been accomplished though breeding programs, that natural selection can produce mite resistant bees, that natural selection in its pure form cannot be used by breeders, as it is far too costly, a bit of a vicious circle, to be certain. Like true forward looking individuals, they declare the only realistic path is through the study of what works and what doesn't, and acting accordingly, while offering no guarantee of success. 

PLB

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