Why is it that we have been treating for years with tera patties and have not grown a resistant strain of foulfbrood but in a few short years we have resistant mites? Could some biologist explain why a bacteria has not grown resistant while a member of the mite family has. Contact me at: Rick Green 8 Hickory Grove Lane Ballston Lake, NY 12019 (518) 384-2539 [log in to unmask]