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Weed Management in Cotton (Gossypium hirsutum) with Soil-Applied and Post-Directed Herbicides

Published online by Cambridge University Press:  12 June 2017

John W. Wilcut ,
David L. Jordan ,
William K. Vencill  and
John S. Richburg III
John W. Wilcut
Affiliation:
Department of Crop and Soil Sciences, Coastal Plain Experiment Station, University of Georgia, Tifton, GA 31793
David L. Jordan
Affiliation:
Department of Crop and Soil Sciences, Coastal Plain Experiment Station, University of Georgia, Tifton, GA 31793
William K. Vencill
Affiliation:
Department of Agronomy, 3111 Miller Plant Science Building, University of Georgia, Athens, GA, 30602
John S. Richburg III
Affiliation:
Coastal Plain Experiment Station, University of Georgia, Tifton, GA
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Abstract

Broadleaf weed and yellow nutsedge control with herbicide programs containing pendimethalin and combinations of fomesafen, fluometuron, and norflurazon applied alone or with POST-directed applications of MSMA or fluometuron plus MSMA was evaluated. Soil-applied herbicide combinations containing fomesafen controlled yellow nutsedge better than combinations of norflurazon and fluometuron but did not provide better entireleaf, ivyleaf, pitted, and tall morningglory or sicklepod control. Fluometuron plus MSMA controlled morningglories and sicklepod more effectively than MSMA. Seed cotton yield was greater in one of two years when fomesafen was applied and was associated with better yellow nutsedge control.

Keywords

Fluometuron, N,N-dimethyl-N'-[3-(trifluoromethyl)phenyl]ureafomesafen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulfonyl)-2-nitrobenzamideMSMA, monosodium salt of methylarsonic acidnorflurazon, 4-chloro-5-(methylamino)-2-[3-(trifluoromethyl)phenyl]-3(2H)-pyridazinonependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamineentireleaf morningglory, Ipomoea hederacea var. integriuscula Gray # IPOHGivyleaf morningglory, Ipomoea hederacea L. # IPOHEpitted morningglory, Ipomoea lacunosa L. # IPOLAtall morningglory, Ipomoea purpurea (L.) Roth. # PHBPUsicklepod, Senna obtusifolia Irwin and Barneby L. # CASOByellow nutsedge, Cyperus esculentus L. # CYPEScotton, Gossypium hirsutum L. ‘Deltapine 90.'fb, followed by
Type
Research
Information
Weed Technology , Volume 11 , Issue 2 , June 1997 , pp. 221 - 226
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

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