Dave Powell, USDA Forest Service (retired), Bugwood.org

Dave Powell, USDA Forest Service (retired), Bugwood.org

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

Chris Evans, University of Illinois, Bugwood.org

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

Chris Evans, University of Illinois, Bugwood.org

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

Dave Powell, USDA Forest Service (retired), Bugwood.org

John Cardina, The Ohio State University, Bugwood.org

Paul Wray, Iowa State University, Bugwood.org

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