I've been reading all the posts about oxalic acid and it reminds me of Apistan use some time back. I'm wondering if everyone is just creating a more super mite which eventually will be resistant not only to Apistan but also oxalic acid and then you'll have to find another chemical to try. Those people using small cell bees don't worry about any chemicals at all. Ed -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---