Tagged Douglas-fir tussock moth cocoons. Burns Douglas-fir Tussock Moth Control Project. Malheur National Forest, Oregon.
Photo by: Robert E. Dolph Date: June 1965
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-465