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Herbicide Systems for Johnsongrass (Sorghum halepense) Control in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Kim Winton-Daniels
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703
Robert Frans
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703
Marilyn McClelland
Affiliation:
Univ. Arkansas, Fayetteville, AR 72703

Abstract

Fenoxaprop, fluazifop-P, haloxyfop, quizalofop, and sethoxydim applied postemergence reduced johnsongrass populations in soybeans over a 3-yr period. The selective postemergence herbicides were more effective as split applications than as single, high-rate applications for controlling heavy infestations of johnsongrass. Fluchloralin applied preplant incorporated decreased the number of postemergence applications required to maintain johnsongrass control above 80%, although control depended primarily upon the selective, postemergence herbicides. Glyphosate applied by ropewick reduced johnsongrass populations more when used in conjunction with fluchloralin than when used alone.

Type
Research
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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