Joseph LaForest, University of Georgia, Bugwood.org

James H. Miller & Ted Bodner, Southern Weed Science Society, Bugwood.org

Terry S. Price, Georgia Forestry Commission, Bugwood.org

Paul Wray, Iowa State University, Bugwood.org

Ohio State Weed Lab , The Ohio State University, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

Steve Dewey, Utah State University, Bugwood.org

USDA Forest Service - Forest Health Protection Intermountain Region - Ogden, UT , USDA Forest Service, Bugwood.org

OSU Extension Slide Set Archives , The Ohio State University, Bugwood.org

Catherine Herms, The Ohio State University, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

David Cappaert, Bugwood.org