Institution: | a Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, Victoria, BC, Canada V8Z 1M5 b USDA Forest Service, Forest Health Technology Enterprise Team, 180 Canfield St., Morgantown, WV 26505, United States c US Forest Service, Pacific Northwest Region, 333 SW First Avenue, P.O. Box 3623, Portland, OR 97208-3623, United States |