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Selective Control of Johnsongrass (Sorghum halepense) in Cotton (Gossypium hirsutum) with Foliar Herbicides

Published online by Cambridge University Press:  12 June 2017

Charles H. Carter  and
Paul E. Keeley
Charles H. Carter
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
Paul E. Keeley
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Shafter, CA 93263
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Abstract

In 1982 and 1983, CGA 82725 {2-propynyl-2-[4-[(3,5-dichloro-2-pyridinyl)oxy] phenoxy] propanoic acid}, fenoxaprop {(±)-2-[4-[(6-chloro-2-benzoxazolyl)oxy]phenoxyl]propanoic acid}, fluazifop {(±)-2-[4-[[5-trifluoromethyl)-2-pyridinyl] oxy]phenoxy] propanoic acid}, haloxyfop {2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid}, and sethoxydim {2-[1-(ethoxyimino-(butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one} were evaluated as postemergence treatments for the control of rhizome johnsongrass [Sorghum halepense (L.) Pers. # SORHA] in cotton (Gossypium hirsutum L. ‘Acala SJ-2′). Applications of fluazifop or haloxyfop, and the higher rates of sethoxydim or CGA 82725 or fenoxaprop, controlled 90% or more johnsongrass 20 and 52 weeks after application and prevented cotton yield losses.

Keywords

Postemergence applicationssequential applicationsjohnsongrass rhizomescotton fiberSORHA
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 35 , Issue 3 , May 1987 , pp. 418 - 421
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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