Theodore Webster, USDA Agricultural Research Service, Bugwood.org

John Cardina, The Ohio State University, Bugwood.org

John Cardina, The Ohio State University, Bugwood.org

John Cardina, The Ohio State University, Bugwood.org

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

John Cardina, The Ohio State University, Bugwood.org

John Cardina, The Ohio State University, Bugwood.org

Ken Chamberlain, The Ohio State University, Bugwood.org