> > >A simple matter of an overnight mutation A single mutation may work well to confer resistance to a synthetic miticide that affects a single neurotransmission pathway. But the mode of action of formic acid appears to be more complex, and would likely require selection for multiple mutations. Could certainly happen, but unlikely overnight. And even then, a mite with the right combination of mutations would then need to propagate her genetics throughout the apiary. Again, has happened again and again, but not overnight. -- Randy Oliver Grass Valley, CA www.ScientificBeekeeping.com *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html