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Mefluidide and Acifluorfen Interactions on Ivyleaf Morningglory (Ipomoea hederacea), Velvetleaf (Abutilon theophrasti), and Common Cocklebur (Xanthium pensylvanicum)

Published online by Cambridge University Press:  12 June 2017

Barbara J. Hook
Affiliation:
Agronomy Dep., Univ. of Maryland, College Park, MD 20742
Scott Glenn
Affiliation:
Agronomy Dep., Univ. of Maryland, College Park, MD 20742

Abstract

In greenhouse studies, postemergence applications of 0.1 or 0.3 kg ai/ha mefluidide {N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamide} as a tank mixture with 0.3, 0.4, or 0.6 kg ai/ha acifluorfen {5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid}, or as a pretreatment 3, 5, or 7 days prior to acifluorfen treatment, often increased injury to ivyleaf morningglory [Ipomoea hederacea (L.) Jacq. ♯3 IPOHE], velvetleaf (Abutilon theophrasti Medic. ♯ ABUTH), and common cocklebur (Xanthium pensylvanicum Wallr. ♯ XANPE), compared to the injury from either herbicide alone. All sequential treatments with 0.1 kg ai/ha mefluidide and 0.3 kg ai/ha acifluorfen increased injury and decreased dry weight of ivyleaf morningglory and velvetleaf when compared with 0.6 kg/ha acifluorfen alone.

Type
Weed Control and Herbicide Technology
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

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