Deterioration of beetle-killed Douglas-fir. Progress of decay in tree after two years. 180 year old tree. Millicoma Forest. Coos County, Oregon.
Photo by: Ken H. Wright and Paul Lauterbach Date: August 1953
Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Source: Portland Station Collection; La Grande, Oregon. Image: PS-1266
To learn more about this photo collection see: Wickman, B.E., Torgersen, T.R. and Furniss, M.M. 2002. Photographic images and history of forest insect investigations on the Pacific Slope, 1903-1953. Part 2. Oregon and Washington. American Entomologist, 48(3), p. 178-185.