1956. DC-3 used by Johnson Flying Service of Missoula, Montana, for spraying areas infested with western spruce budworm. Pilot Kenny Roth. Helena National Forest, Montana. (33517554866)

DC-3 used by Johnson Flying Service of Missoula, Montana, for spraying areas infested with western spruce budworm. Pilot Kenny Roth. Helena National Forest, Montana.
Photo by: W.E. Steuerwald
Date: July 1956
Credit: National Archives and Records Administration
RG# 95-GP Records of the Forest Service General Subject Files USDA Forest Service Negative Number: 481338
NARA image: 95-GP-5040-Box0854_033_001_AC
For related historic forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: <a href="http://wfiwc.org/content/history-and-resources" wfiwc.org/content/history-and-resources</a>

Image provided by USDA Forest Service, R6, State and Private Forestry, Forest Health Protection: <a href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth/" www.fs.usda.gov/main/r6/forest-grasslandhealth/</a>.