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Control of Annual Goldeneye (Viguiera annua) on Rangeland

Published online by Cambridge University Press:  12 June 2017

M. Coburn Williams
M. Coburn Williams*
Affiliation:
U. S. Dep. Agric., Agric. Res. Serv., Poisonous Plant Res. Lab., 1150 E. 1400 N., Logan, UT 84321
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Abstract

Foliar sprays of 2,4-D, dicamba, and triclopyr were applied to vegetative annual goldeneye at 0.56, 1.1, and 2.2 kg ai ha-1. Mortality was 47% and 64% after treatment with triclopyr and 2,4-D at 2.2 kg ha-1, respectively. Mortality was less than 30% at lower rates. Mortality was 54%, 93%, and 100% after treatment with dicamba at 0.56, 1.1, and 2.2 kg ha-1, respectively. Foliar cover of tobosagrass increased 119% and 92% on plots treated with dicamba at 1.1 and 2.2 kg ha-1, respectively. Herbicide treatment did not affect nitrate concentration (0.03% to 0.05%) in treated plants.

Keywords

Dicamba, 3,6-dichloro-2-methoxybenzoic acidtriclopyr [(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid2,4-D, (2,4-dichlorophenoxy)acetic acidannual goldeneye, Viguiera annua (M. E. Jones) Blake ♯3 VIUANtobosagrass, Hilaria mutica (Buckl.) Benth. ♯ HILMUPoisonous plantnitrates
Type
Notes
Information
Weed Technology , Volume 4 , Issue 3 , September 1990 , pp. 661 - 662
Copyright
Copyright © 1990 Weed Science Society of America 

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References

Literature Cited

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