A good article. Scroll down to treatment of mites. Has me re-thinking my stance on wood ashes. Dirt & some Sevin dust sounds like the way to go until I can clean out the coop this spring.Shelley! So you agree that using wood ash is not only cheaper but kills mites as well?
http://www.the-chicken-chick.com/2012/05/diatomaceous-earth-de-benefitrisk.html