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Control of Velvetleaf (Abutilon theophrasti) and Common Cocklebur (Xanthium pensylvanicum) in Soybeans (Glycine max) with Sequential Applications of Mefluidide and Acifluorfen

Published online by Cambridge University Press:  12 June 2017

Scott Glenn ,
Barbara J. Hook ,
Robert S. Peregoy  and
Thomas Wiepke
Scott Glenn
Affiliation:
Agron. Dep., Univ. of Maryland, College Park, MD 20742
Barbara J. Hook
Affiliation:
Agron. Dep., Univ. of Maryland, College Park, MD 20742
Robert S. Peregoy
Affiliation:
Agron. Dep., Univ. of Maryland, College Park, MD 20742
Thomas Wiepke
Affiliation:
Agron. Dep., Univ. of Maryland, College Park, MD 20742
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Abstract

Single and sequential applications of mefluidide {N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamide} and acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid} were evaluated in the field for velvetleaf (Abutilon theophrasti Medic. ♯ ABUTH) and common cocklebur (Xanthium pensylvanicum Wallr. ♯ XANPE) control in soybeans [Glycine max (L.) Merr. ‘Williams’]. Acifluorfen was applied at 0.4 or 0.6 kg ai/ha alone or 3, 5, or 7 days following application of 0.1 or 0.3 kg ai/ha mefluidide. Acifluorfen applied alone provided acceptable control of velvetleaf and common cocklebur in the two- and three-leaf stage of growth, but acifluorfen was not as effective when applied to weeds with five to eight true leaves. Sequential applications of mefluidide and acifluorfen often increased velvetleaf and common cocklebur control, compared to either herbicide applied alone.

Keywords

Herbicide combinationsgrowth stageABUTHXANPE
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 33 , Issue 2 , March 1985 , pp. 244 - 249
Copyright
Copyright © 1985 by the Weed Science Society of America 

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References

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