Entomologists Peter W. Orr (right) and Paul E. Buffam collecting bark samples from infested ponderosa pine to determine larval winter mortality. Sherman Valley, Fremont National Forest, Oregon.
Photo by: Link Luckett
Date: April 1962
Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Division of Timber Management, Insect and Disease Control Branch Collection; Regional Office, Portland, Oregon.
Image: ID-19
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection:
www.fs.usda.gov/main/r6/forest-grasslandhealth
