Blair, Successful mite control especially Varroa, is very dependent on the beekeeper's knowledge and understanding of the biology and life cycles of these mites. Also, the early detection of mite infestations greatly enhances the opportunity of successful control. Here in BC, the Ministry's Apiculture Program has several factsheets on detection methods and control methods. I can also highly recommend the booklet called "Honey Bee Diseases & Pests", published by the Canadian Association of Professional Apiculturists (CAPA). The 16-page booklet covers all common diseases and pests, describing each life cycle, identification, prevention and control methods. The text is highlighted by excellent, colour photographs. You may wish to contact bee supply outfits such as W.T. Kelley or otherwise contact Dr. Cynthia Scott-Dupree at the University of Guelph (Internet: [log in to unmask]). I think a copy is only US$1.35 or so. Paul van Westendorp [log in to unmask] Provincial Apiculturist ph. (604) 576-5639 B.C. Ministry of Agriculture fx. (604) 576-5652 Fisheries & Food