Toxicity of herbicides on three northwestern conifers
By: by H. Gratkowski.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Series: Research paper -- no. 42.; Research paper (Pacific Northwest Forest and Range Experiment Station (Portland, Or.)) -- no. 42.
Publisher: U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1961
Place of publication: [Portland, Or
Language: eng
Number of pages: 24
Subjects: Ponderosa pine -- Herbicide injuiries -- Northwest, Pacific.; Sugar pine -- Herbicide injuiries -- Northwest, Pacific.; Douglas fir -- Herbicide injuiries -- Northwest, Pacific.; Dichlorophenoxyacetic acid -- Toxicology -- Northwest, Pacific.; Trichlorophenoxyacetic acid -- Toxicology -- Northwest, Pacific.; Plants -- Effect of herbicides on -- Northwest, Pacific.
Notes: "May 1961."

Also issued online.