Toxicity of herbicides on three northwestern conifers
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Toxicity of herbicides on three northwestern conifers

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Published by Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture in Portland, Or .
Written in English

Subjects:

  • Herbicides,
  • Toxicology,
  • Conifers,
  • Plants,
  • Effect of herbicides on

Book details:

Edition Notes

Statementby H. Gratkowski
SeriesResearch paper -- no. 42, Research paper (Pacific Northwest Forest and Range Experiment Station (Portland, Or.)) -- no. 42.
ContributionsPacific Northwest Forest and Range Experiment Station (Portland, Or.)
The Physical Object
Pagination24 p. :
Number of Pages24
ID Numbers
Open LibraryOL25594806M
OCLC/WorldCa38253660

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TOXICITY OF HERBICIDES ON THREE NORTHWESTERN CONFIFERS [Gratkowski, H.] on *FREE* shipping on qualifying offers. TOXICITY OF HERBICIDES ON THREE NORTHWESTERN CONFIFERSAuthor: H. Gratkowski. Toxicity of herbicides on three northwestern conifers. Related Titles. Series: Research paper (Pacific Northwest Forest and Range Experiment Station (Portland, Or.)) ; no. By. Gratkowski, H. Pacific Northwest Forest and Range Experiment Station (Portland, Or.) Type. Book Material. Published material. Publication info. toxicity of herbicides on three northwestern conifers by h. gratkowski may pacific northwest forest and range experiment station r. w. cowlin, director Author: H. Gratkowski. Toxicity of herbicides on three northwestern conifers / Pages; Toxicity of herbicides on three northwestern conifers / By. Gratkowski, H. Search Inside This Book: Results For: Click/Shift+Click pages to select for download. zoom out Zoom zoom in. Cancel Generate Review No Pages : H. Gratkowski.

Toxicity of herbicides on three northwestern conifers / By H. Gratkowski and Or.) Pacific Northwest Forest and Range Experiment Station (Portland. Topics: Conifers, Effect of herbicides on. Toxicity of herbicides on three northwestern conifers / By H. Gratkowski and Or.) Pacific Northwest Forest and Range Experiment Station (Portland. Abstract. no.4 Topics: Conifers, Effect of herbicides on, Herbicides. Few of these herbicides are acutely toxic to any of the conifer species tested. We specify the conifer/herbicide combinations that should be avoided. On three sites in coastal northwestern. Glyphosate herbicides are the most widely used non-selective broad-spectrum herbicides in the world. In Canada they are extensively used in forestry for site preparation and for conifer release. This report summarizes current literature on the non-target impacts of glyphosate herbicides on amphibians.

  This compound is one of the most toxic of the commonly used herbicides, and the toxicity varies in different animals depending on the formulation and species used. The toxic doses (oral LD 50) of paraquat and diquat in rats are and mg/kg BW, respectively, and this class of herbicides is classified as moderately hazardous. Paraquat is a.   The importance of herbicides. Living beings are exposed to the action of numerous agents that are potentially toxic. These agents can be physical, chemical or biological and can provoke in the organisms physiological, biochemical, pathological effects and, in some cases, genetic effects [].A great variety of chemical substances with mutagenic potential, both natural and synthetic, have. Herbicides are used routinely to control noxious plants. Most of these chemicals, particularly the more recently developed synthetic organic herbicides, are quite selective for specific plants and have low toxicity for mammals; other, less-selective compounds (eg, sodium arsenite, arsenic trioxide, sodium chlorate, ammonium sulfamate, borax, and many others) were formerly used on a large scale. Planting conifers on fields or harvest units with heavy grass and weeds usually reduces plantation survival and growth. A moderately dense stand of grass in an open field in western Oregon can be expected to remove virtually all available moisture in the top 12 inches of soil by the end of June.