John D. Byrd, Mississippi State University, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

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

Chris Evans, University of Illinois, Bugwood.org

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

Chris Evans, University of Illinois, Bugwood.org

Chris Evans, University of Illinois, Bugwood.org

James H. Miller, USDA Forest Service, Bugwood.org

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