Diseases and Pests Update: USDA Bulletin 690 is now available online at http://www.ars.usda.gov/is/np/honeybeediseases/honeybeediseases.pdf
This is the most comprehensive and up-to-date publication available on diseases and pests written by Dr. H. Shimanuki (now retired) and Dave Knox.
Information sent by Tomas Mozer and received by BfD on 16 October 2006