Bruce Ackley, The Ohio State University, Bugwood.org

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

Bruce Ackley, The Ohio State University, Bugwood.org

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

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

Bruce Ackley, The Ohio State University, Bugwood.org

Bruce Ackley, The Ohio State University, Bugwood.org

Ken Chamberlain, The Ohio State University, Bugwood.org