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Chlorsulfuron Reduced Control of Wild Oat (Avena fatua) with Diclofop, Difenzoquat, and Flamprop

Published online by Cambridge University Press:  12 June 2017

P. Ashley O'Sullivan  and
Ken J. Kirkland
P. Ashley O'Sullivan
Affiliation:
Weed Sci. Agric. Can. Res. Stn. Lacombe, Alberta and Experimental Farm, Scott, Saskatchewan SOK 4AO
Ken J. Kirkland
Affiliation:
Weed Sci. Agric. Can. Res. Stn. Lacombe, Alberta and Experimental Farm, Scott, Saskatchewan SOK 4AO
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Abstract

The influence of chlorsulfuron {2-chloro-N-[[(4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino] carbonyl] benzenesulfonamide} on control of wild oat (Avena fatua L. ♯3 AVEFA) when mixed in the spray tank with three herbicides was tested in greenhouse and in field trials at Lacombe and Scott, Canada, during 1981 and 1982. In field experiments, chlorsulfuron mixed with diclofop {2-[4-(2,4-dichlorophenoxy)phenoxy]propanoic acid} caused a 4 to 35% reduction in control of wild oat. Mixtures of chlorsulfuron with difenzoquat (1,2-dimethyl-3,5-diphenyl-1H-pyrazolium) caused a 0 to 19% reduction and mixtures with flamprop {N-benzoyl-N-(3-chloro-4-fluorophenyl)-DL-alanine} a 2 to 30% reduction in control of wild oat. Addition of chlorsulfuron to the wild oat herbicides under greenhouse conditions also resulted in losses in control of wild oat. Increasing the rate of the wild oat herbicide in the mixture tended to overcome these losses.

Keywords

Herbicide mixturesantagonismAVEFA
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 32 , Issue 3 , May 1984 , pp. 285 - 289
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

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