Economic Impacts Honeybee –Varroatosis Varroa destructorVarroa Huge threat to beekeeping; can kill colony Tend to infect drone brood over worker brood Hard to treat: Chemically, Physically, Cultural minute videohttp://video.google.com/videoplay?docid= Image courtesy of: Scott Bauer, USDA Agricultural Research Service, Bugwood.org

Economic Impacts Honeybee –Tracheal mite (Acarapis woodi)Acarapis –Spread to U.S. in 1984 –Enter tracheal system of adults –Only 3% annual loss so not a major pest –May cause wing deformity and improper flying –Treatment: Chemical, Resistant bees, Crisco patties – – 9 minute videohttp://video.google.com/videoplay?docid= Photo by Lilia De Guzman

Sampling Technique for Tracheal Mites We will try this in lab if bees availablethis Image from USDA pamphlet

Bibliography Continued Bauer, Scott USDA Image Gallery. Varroa mites image. Caron, Dewey M Honey Bee Biology and beekeeping. Wicwas Press, LLC. Cp. 20. De Guzman, Lilia USDA Image Gallery. Tracheal mite image. Sanford, M.T. And H.L. Cromroy Univ. of Florida. Featured Creatures: Varroa mites & tracheal mites Shimanuki, Hachiro, and David A. Knox Diagnosis of Honey Bee Diseases. U.S. Department of Agriculture, Agriculture Handbook No. AH–690, 61 pp. USDA Tracheal Mite Dissection Video.