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Lactofen Systems for Broadleaf Weed Control in Peanuts (Arachis hypogaea)

Published online by Cambridge University Press:  12 June 2017

John W. Wilcut,
Charles W. Swann and
Henry B. Hagwood
John W. Wilcut
Affiliation:
Tidewater Agric. Exp. Stn., Virginia Polytech. Inst. & State Univ., P. O. Box 7219, 6321 Holland Road, Suffolk, VA 23437
Charles W. Swann
Affiliation:
Tidewater Agric. Exp. Stn., Virginia Polytech. Inst. & State Univ., P. O. Box 7219, 6321 Holland Road, Suffolk, VA 23437
Henry B. Hagwood
Affiliation:
Valent USA Corp., Oxford, NC 27565
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Abstract

Weed management systems using a chloroacetamide herbicide applied preplant incorporated (PPI) and at cracking (AC) plus lactofen applied AC and early postemergence (POST) controlled at least 98% of common lambsquarters. Similar systems using a chloroacetamide herbicide applied PPI and early POST plus lactofen applied early POST and postemergence (POST) controlled less than 70% of common lambsquarters. All sequential lactofen systems controlled common ragweed completely and at least 86% of morningglory species. Highest peanut yields and net returns were obtained with weed management systems consisting of sequential applications of lactofen applied AC and early POST, or systems that used acifluorfen plus bentazon POST, or lactofen plus bentazon applied early POST or POST.

Keywords

Acifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acidbentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidelactofen, (±)-2-ethoxy-1-methyl-2-oxoethyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoatecommon lambsquarters, Chenopodium album L. ♯3 CHEALcommon ragweed, Ambrosia artemisiifolia L. ♯ AMBELIpomoea spp.peanut, Arachis hypogaea L.Economic analysisnet returnsAmbrosia artemisiifoliaChenopodium albumIpomoea spp.AMBELCHEALIPOHEIPOHGIPOLAPHBPU

Information

Type
Research
Information
Weed Technology , Volume 4 , Issue 4 , December 1990, pp. 819 - 823
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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