I have 2 chickens I need to treat for feather mites. I've tried ivermectin and Rotenone twice without success (looks like the lice are gone though!). I've heard that Sevin dust is the way to go, but I don't know where to get it! I was thinking I'd wash them with dog flea and tick shampoo. I used baby shampoo today which was tolerated well but after drying her all off I saw the little things crawling around on her tail feathers. Flea and tick shampoo is available everywhere. Is it worth a try? Can anyone tell me where I might be able to find Sevin dust in Nova scotia, Canada?