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Effect of MSMA on Entireleaf Morningglory (Ipomoea Hederacea var. Integriuscula) Control with Postemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

David L. Jordan ,
Marilyn R. McClelland ,
Robert E. Frans  and
J. Andrew Kendig
David L. Jordan
Affiliation:
Dep. Agron., Univ. Ark., Fayetteville, AR 72703
Marilyn R. McClelland
Affiliation:
Dep. Agron., Univ. Ark., Fayetteville, AR 72703
Robert E. Frans
Affiliation:
Dep. Agron., Univ. Ark., Fayetteville, AR 72703
J. Andrew Kendig
Affiliation:
Dep. Agron., Univ. Missouri, Delta Center, Portageville, MO 63873
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Abstract

Experiments were conducted from 1989 through 1991 to determine the effect of MSMA on efficacy of fluometuron, cyanazine, oxyfluorfen, lactofen, methazole, diuron, and linuron applied POST to entireleaf morningglory. In one set of experiments, applications were made at the cotyledon to three-leaf and four- to six-leaf stages of weed growth. In another set of experiments, applications were made at only one growth stage. Cyanazine, MSMA, or cyanazine plus MSMA were the most efficacious treatments, especially when application was delayed until the four- to six-leaf stage. Adding MSMA to all of the herbicides increased control of entireleaf morningglory, with the magnitude of improvement increasing as the application timing was delayed.

Keywords

Cyanazine, 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrilediuron, N′-(3,4-dichlorophenyl)-N,N-dimethylureafluometuron, N,N-dimethyl-N′-[(3-trifluoromethyl)phenyl]urealactofen, (±)-2-ethoxy-1-methyl-2-oxyethyl-5-[2-chloro-4-(trifluoromethyl)-phenoxy]-2-nitrobenzoatelinuron, N′-(3,4-dichlorophenyl)-N-methoxy-N-methylureamethazole, 2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidine-3,5- dioneMSMA, monosodium salt of methylarsonic acidoxyfluorfen, 2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzeneentireleaf morningglory, Ipomoea hederacea var. integriuscula Gray # IPOHGCyanazinediuronfluometuronlactofenlinuronmethazoleoxyfluorfeninteractionGossypium hirsutumIPOHG
Type
Research
Information
Weed Technology , Volume 7 , Issue 1 , March 1993 , pp. 36 - 41
Copyright
Copyright © 1993 by the Weed Science Society of America 

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References

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