Michael Shephard, USDA Forest Service, Bugwood.org

Michael Rasy, University of Alaska, Bugwood.org

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

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

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

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

Mary Ellen (Mel) Harte, Bugwood.org

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

John M. Randall, The Nature Conservancy, Bugwood.org

John M. Randall, The Nature Conservancy, Bugwood.org