Since varroa cling to the outside of bees, could a "carwash" be devised to strip the bees of varroa? The entire colony could be made to pass through this gauntlet thereby removing all mites from the bee's bodies. The bees would be placed in a new mite-free home and their old home recycled once the varroa in it died. Contact me at: Rick Green 8 Hickory Grove Lane Ballston Lake, NY 12019 (518) 384-2539 [log in to unmask]