> 
> One frustration to me is that as far as I know, no breeders are selecting
> for the main resistance trait used by Apis cerana -- self-sacrifice of
> worker larvae in response to varroa saliva. 

What I have wondered since varroa arrived in the ‘90s, is the fact that the male mite mates with his sisters.  Does this not present a window for genetic researchers to alter varroa’s success? 
                                                                                                                                                                                                                                                                                                                                                                                                                                    As I understand it, AHB/scuts mature worker brood in 19 days whereas ours take 21 days.  Has any work been done on methods to reduce brood development time, and thus lower varroa success?

Is it true that AHB in Puerto Rico are less aggressive than elsewhere, why?

Bob Darrell(an old guy with more questions than answers) 
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