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Publication Information

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Title: Herbicides for shrub and weed tree control in western Oregon.

Author: Gratkowski, H.;

Date: 1978

Source: Gen. Tech. Rep. PNW-GTR-077. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 1-48

Publication Series: General Technical Report (GTR)

Description: Herbicides were tested on 16 common shrubs and weed trees during the past 24 years. The woody plants included snowbrush ceanothus, deerbrush ceanothus, mountain whitethorn, varnishleaf ceanothus, sprouting and nonsprouting forms of greenleaf manzanita, hairy manzanita, hoary manzanita, golden chinkapin, golden evergreenchinkapin, Saskatoon serviceberry, Pacific madrone, salmonberry, western thimbleberry, scrub tanoak, and canyon live oak. Chemicals tested included 2,4-D, dichlorprop, 2,4,5-T, silvex, 2,4-DB, amitrole, amitrole-T, 2,3,6-TBA, AMS, picloram, KreniteTM, triclopyr, and an experimental carbamate compound. Low volatile esters of 2,4-D and 2,4,5-T proved the most effective and versatile herbicides for silvicultural use in western Oregon. Results of the screening tests are related to comparable data from small plot tests and project-scale aerial spray trials. To aid silviculturists, useful treatments and the most effective herbicide are shown in bold-face type for each shrub and weed tree.

Keywords: herbicides (-forest weed control, brush control, silvicultural Oregon (western)

Publication Notes:

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  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
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Citation:


Gratkowski, H. 1978. Herbicides for shrub and weed tree control in western Oregon. Gen. Tech. Rep. PNW-GTR-077. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station: 1-48

 


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