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Chemical and Cultural Methods for Bermudagrass (Cynodon dactylon) Control in Cotton (Gossypium hirsutum)

Published online by Cambridge University Press:  12 June 2017

Robert Frans
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
Marilyn McClelland
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701
Sandra Kennedy
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR 72701

Abstract

A field study was conducted to develop systems using cultural and chemical methods for control of bermudagrass (Cynodon dactylon L.) in cotton (Gossypium hirsutum L.). Several control options were promising. On areas prepared either with a moldboard plow or a disk, the sodium and magnesium salts of dalapon (2,2-dichloropropionic acid) at 4.7 kg/ha directed to 25-cm-high cotton and repeated at the 40-cm height or the ethyl ester of difenopenten {4-[4-[4-(trifluoromethyl)phenoxy] phenoxy]-2-pentenoic acid} directed to 15-cm-high cotton and repeated at the 30-cm height, with either standard or close cultivation as needed, provided good bermudagrass control. On areas prepared with a moldboard plow, the isopropyl amine salt of glyphosate [N-(phosphonomethyl)glycine] at 4.4 kg/ha over-the-top as a fall application with cultivation as needed was promising.

Type
Research Article
Copyright
Copyright © 1982 by the Weed Science Society of America 

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References

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