File:1950. DDT insecticide storage tanks and pump. Big Rock Flat airstrip. Western spruce budworm control project. Kinzua, Oregon. (39850924032).jpg
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editDescription1950. DDT insecticide storage tanks and pump. Big Rock Flat airstrip. Western spruce budworm control project. Kinzua, Oregon. (39850924032).jpg |
DDT insecticide storage tanks and pump. Big Rock Flat airstrip. Western spruce budworm control project. Kinzua, Oregon. Photo by: Unknown Date: 1950 Credit: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. Source: Region 6, Forest Health Protection; Aerial Survey digital collection. Excerpt from 1950 Spruce Budworm Control Project. Oregon State Board of Forestry. Salem, Oregon. March, 1951: "Specifications for the insecticide were prepared by the Bureau of Entomology and Plant Quarantine and were as follows: Formulation: One pound of DDT to 1.25 quarts of auxiliary solvent, and sufficient fuel oil to bring the mixture to one gallon at 60 to 70 degrees Fahrenheit. The minimum flash point of the mixture to be less than 175 degree Fahrenheit." For additional historical forest entomology photos, stories, and resources see the Western Forest Insect Work Conference site: <a href="http://wfiwc.org/content/history-and-resources" rel="nofollow">wfiwc.org/content/history-and-resources</a> Image provided by USDA Forest Service, Region 6, 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>
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Date | Taken in 1950 | ||||
Source | 1950. DDT insecticide storage tanks and pump. Big Rock Flat airstrip. Western spruce budworm control project. Kinzua, Oregon. | ||||
Author | R6, State & Private Forestry, Forest Health Protection |
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editPublic domainPublic domainfalsefalse |
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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.
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This image was originally posted to Flickr by USDA Forest Service at https://flickr.com/photos/151887236@N05/39850924032 (archive). It was reviewed on 8 May 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the Public Domain Mark. |
8 May 2018
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current | 12:56, 8 May 2018 | ![]() | 2,633 × 2,069 (2.55 MB) | OceanAtoll (talk | contribs) | Transferred from Flickr via #flickr2commons |
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Software used | Microsoft Windows Photo Viewer 6.1.7600.16385 |
File change date and time | 16:19, 24 January 2018 |