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Control of Wasatch Milkvetch (Astragalus miser var. oblongifolius) and Associated Species on Mountain Rangeland

Published online by Cambridge University Press:  12 June 2017

M. C. Williams  and
M. H. Ralphs
M. C. Williams
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Poisonous Plant Res. Lab., 1150 E. 1400 N., Logan, UT 84321
M. H. Ralphs
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Poisonous Plant Res. Lab., 1150 E. 1400 N., Logan, UT 84321
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Abstract

Eight herbicides or herbicide combinations were evaluated for control of Wasatch milkvetch and other broadleaf plants. Triclopyr at 2.2 kg ae/ha controlled Wasatch milkvetch and associated mountain big sagebrush and mulesears 100%. A combination of triclopyr plus dicamba at 1.1 plus 1.1 kg ae/ha also controlled these species. When compared to untreated plots, grass production increased over 400% on plots treated with triclopyr at 1.7 and 2.2 kg/ha and more than 300% on plots treated with triclopyr plus dicamba at 1.1 plus 1.1 kg/ha.

Keywords

Dicamba, 3,6-dichloro-2-methoxybenzoic acidtriclopyr, [(3,5,6-trichloro-2-pyridinyl) oxy] acetic acidmulesears, Wyethia amplexicaulis Nutt. #3 WYEAMmountain big sagebrush, Artemisia tridentata Nutt. spp. vaseyana (Rydb.) Beetle # ARTTRWasatch milkvetch, Astragalus miser var. oblongifolius (Rydb.) Cronq. # ASAMOPoisonous plant3-nitro-1-propanolclopyraliddicambapicloramtriclopyr2,4-DArtemisia tridentataWyethia amplexicaulisARTTRASAMO
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 110 - 113
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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