USDA Forest Service , Bugwood.org

Erich G. Vallery, USDA Forest Service - SRS-4552, Bugwood.org

W.H. Bennett, USDA Forest Service, Bugwood.org

James R. Meeker, USDA Forest Service, Bugwood.org

Peter L. Lorio, Jr., USDA Forest Service, Bugwood.org

Erich G. Vallery, USDA Forest Service - SRS-4552, Bugwood.org

Ronald F. Billings, Texas A&M Forest Service, Bugwood.org