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Horseweed (Conyza canadensis) Control in Conservation Tillage Cotton (Gossypium hirsutum)

Published online by Cambridge University Press:  12 June 2017

J. Wayne Keeling ,
C. Gary Henniger  and
John R. Abernathy
J. Wayne Keeling
Affiliation:
Tex. Agric. Exp. Stn., Lubbock, TX 79401
C. Gary Henniger
Affiliation:
Tex. Agric. Exp. Stn., Lubbock, TX 79401
John R. Abernathy
Affiliation:
Tex. Agric. Exp. Stn., Lubbock, TX 79401
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Abstract

Horseweed is a major weed in conservation tillage production systems. Herbicides were evaluated for horseweed control at two growth stages, rosette and 10- to 15-cm tall. Horseweed was controlled at the rosette stage with the 2,4-D ester, 2,4-D amine, dicamba, 2,4-D plus glyphosate, and glyphosate. Higher rates were needed for control at the 10- to 15-cm stage. Paraquat did not effectively control horseweed at any stage.

Keywords

2,4-D (2,4-dichlorophenoxy)-acetic aciddicamba, 3,6-dichloro-2-methoxybenzoic acidglyphosate, N-(phosphonomethyl)glycine, paraquat, 1,1′-dimethyl-4,4′-bipyridinium ioncotton, Gossypium hirsutum L.horseweed, Conyza canadensis (L.)Cronq. #3 ERICAsorghum, Sorghum bicolor (L.)Moench2,4-Ddicambaglyphosateno-till
Type
Research
Information
Weed Technology , Volume 3 , Issue 2 , June 1989 , pp. 399 - 401
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

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