Edward H. Holsten, USDA Forest Service, Bugwood.org
Edward H. Holsten, USDA Forest Service, Bugwood.org
Minnesota Department of Natural Resources - FIA , Minnesota Department of Natural Resources, Bugwood.org
USDA Forest Service - Region 2 - Rocky Mountain Region , USDA Forest Service, Bugwood.org
William M. Ciesla, Forest Health Management International, Bugwood.org
William M. Ciesla, Forest Health Management International, Bugwood.org
Neil Thompson, University of Maine at Fort Kent, Bugwood.org
Neil Thompson, University of Maine at Fort Kent, Bugwood.org
Neil Thompson, University of Maine at Fort Kent, Bugwood.org
Steven Katovich, Bugwood.org
K.B. Jamieson, Canadian Forest Service, Bugwood.org