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

Catherine Herms, The Ohio State University, Bugwood.org

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

Vern Wilkins, Indiana University, Bugwood.org

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

Catherine Herms, The Ohio State University, Bugwood.org

Catherine Herms, The Ohio State University, Bugwood.org

William M. Ciesla, Forest Health Management International, Bugwood.org

William M. Ciesla, Forest Health Management International, Bugwood.org

Beverly Turner, Jackson Minnesota, Bugwood.org

William M. Ciesla, Forest Health Management International, Bugwood.org

David Cappaert, Bugwood.org