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Postemergence Grass and Broadleaf Herbicide Interactions for Red Rice (Oryza sativa) Control in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Bradford W. Minton ,
David R. Shaw  and
Mark E. Kurtz
Bradford W. Minton
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762
David R. Shaw
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762
Mark E. Kurtz
Affiliation:
Delta Branch, Miss. Agric. For. Exp. Stn., Stoneville, MS 38776
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Abstract

Quizalofop controlled 2- to 3-leaf and 5- to 6-leaf red rice better than fluazifop-P, haloxyfop, or sethoxydim applied alone. Red rice control increased when acifluorfen was tank mixed with haloxyfop, fluazifop-P, or sethoxydim. Antagonism was most severe when imazaquin was tank mixed with any of the grass herbicides. The efficacy of sethoxydim, fluazifop-P, and haloxyfop was reduced when applied with chlorimuron or bentazon. In greenhouse experiments, all of the grass herbicides, except for fenoxaprop, reduced fresh weight of red rice 71% or more. Based on fresh weight reduction, acifluorfen, fomesafen, and lactofen only reduced the activity of fluazifop-P, while imazaquin decreased the activity of all grass herbicides.

Keywords

Acifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acidfenoxaprop, (±)-2-[4-[(6-chloro-2-benzoxazolyl) oxy] phenoxy] propanoic acidhaloxyfop, 2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acidquizalofop, (±)-2-[4-[(6-chloro-2-quinoxalinyl)oxy] phenoxy] propanoic acidsethoxydim, 2-[1-(ethoxyimino)butyl-5-[2-(ethylthio) propyl]-3-hydroxy-2-cyclohexen-1-onered rice, Oryza sativa L. #3 ORYSAsoybeans, Glycine max (L.)Merr.Tank mixesantagonismsynergismacifluorfenbentazonchlorimuronclethodimfenoxapropfluazifop-Pfomesafenhaloxyfopimazaquinlactofenquizalofopsethoxydim2,4-DBORYSA
Type
Research
Information
Weed Technology , Volume 3 , Issue 2 , June 1989 , pp. 329 - 334
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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