File:1983. 205 helicopter used for Zectran insecticide application. Western spruce budworm control project. Malheur National Forest, Oregon. (35935602471).jpg

205 helicopter used for Zectran insecticide application. Western spruce budworm control project. Malheur National Forest, Oregon.

Photo by: Unknown Date: 1983

Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection. Source: Region 6, Forest Health Protection slide collection housed at the Regional Office in Portland, Oregon.

Note: "Based on an extensive aerial survey for defoliation and subsequent ground searches for egg masses, an Environmental Assessment report was prepared which recommended, in January 1983, treatment of 1.4 million acres for control of western spruce budworm in the Blue Mountains of northeast Oregon. Monetary constraints at both the State and Federal level resulted in a project designed to aerially treat only 529,000 acres, primarily with Sevin 4-Oil1/2. About 179,000 acres had been treated in 1982 with Sevin 4-Oil1/2 and Orthene1/2. No area treated in 1982 was retreated in 1983. The 1983 project was the largest use of helicopters for forest spraying ever made in North America. At the peak of spraying, more than 1/2 million miles were driven and over 75,000 person hours were worked on the project. Some 5,000 to 6,000 miles of perennial streams occurred in the spray area and were buffered." For further information see: Background Information on the 1983 Western Spruce Budworm project in Eastern Oregon here: <a href="https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsbdev2_026449.pdf" rel="nofollow">www.fs.usda.gov/Internet/FSE_DOCUMENTS/fsbdev2_026449.pdf</a>

For information about earlier western spruce budworm activity and control projects see: Dolph, Robert E. 1980. Budworm activity in Oregon and Washington, 1947-1979. R6-FIDM-033-1980. Portland, OR: US Dept. of Agriculture, Forest Service, Pacific Northwest Region, Forest Insect and Disease Management. 54 p.

For additional R6 pesticide application project documentation see: <a href="https://www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-diseases/?cid=fsbdev2_027320" rel="nofollow">www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...</a>

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

This image or file is a work of a United States Department of Agriculture employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain. English ∙ español ∙ Nederlands ∙ slovenščina ∙ Tiếng Việt ∙ македонски ∙ русский ∙ українська ∙ 日本語 ∙ +/−