Companion Publication O'Brien, J.G.; Mielke, M.E.; Starkey, D.; Juzwik, J. In Press. How to Identify, Prevent, and Control Oak Wilt. NA-FR-02-99. USDA Forest Service, Northeastern Area State and Private Forestry. This publication will be available from: USDA Forest Service, St. Paul, MN, 55108.