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Compatibility of Sethoxydim with Five Postemergence Broadleaf Herbicides

Published online by Cambridge University Press:  12 June 2017

David L. Holshouser  and
Harold D. Coble
David L. Holshouser
Affiliation:
Dep. Crop Sci., N.C. State Univ., Raleigh, NC 27695-7620
Harold D. Coble
Affiliation:
Dep. Crop Sci., N.C. State Univ., Raleigh, NC 27695-7620
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Abstract

Experiments were conducted to investigate the interactions of tank-mix combinations of sethoxydim plus the sodium salt of bentazon, the sodium salt of acifluorfen, fomesafen, imazaquin, or the ethyl ester of chlorimuron. Antagonistic interactions were observed with tank-mixes of sethoxydim plus bentazon, imazaquin, or chlorimuron applied for fall panicum, large crabgrass, and goosegrass control in field experiments. Antagonism was observed in greenhouse experiments with tank-mixes of sethoxydim plus bentazon or imazaquin applied to goosegrass. Bentazon, acifluorfen, and fomesafen reduced 14C-sethoxydim uptake by large crabgrass. However, imazaquin and chlorimuron did not affect 14C-sethoxydim uptake. In field experiments, no interactions occurred with tank-mixes of sethoxydim plus any of the broadleaf weed control herbicides applied to entireleaf or tall morningglory.

Keywords

Acifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acidbentazon, 3-(1-(methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidechlorimuron, 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino]carbonyl]amino] sulfonyl]benzoic acidfomesafen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-N-(methylsulfonyl)-2-nitrobenzamideimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-y1]-3-quinolinecarboxylic acidsethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-oneentireleaf morningglory, Ipomoea hederacea var. integriuscula Gray ♯3 IPOHGfall panicum, Panicum dichotomiflorum Michx. ♯ PANDIgoosegrass, Eleusine indica (L.)Gaertn. ♯ ELEINlarge crabgrass, Digitaria sanguinalis (L.)Scop. ♯ DIGSAtall morningglory, Ipomoea purpurea (L.)Roth. ♯ PHBPUHerbicide interactionantagonismherbicide uptakeDIGSAELEINIPOHGPANDIPHBPU
Type
Research
Information
Weed Technology , Volume 4 , Issue 1 , March 1990 , pp. 128 - 133
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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