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Red Rice (Oryza sativa) and Junglerice (Echinochloa colonum) Control in Solid-Seeded Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

James L. Griffin  and
Thomas R. Harger
James L. Griffin
Affiliation:
Rice Res. Stn., Louisiana Agric. Exp. Stn., P.O. Box 1429, Crowley, LA 70527-1429
Thomas R. Harger
Affiliation:
Dep. Plant Path. and Crop Physiol., Louisiana State Univ.
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Abstract

Red rice (Oryza sativa L. # ORYSA) control in soybeans [Glycine max (L.) Merr.] was 93% or more with shallow-incorporated alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide] at 3.9 kg ai/ha, metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] at 2.8 kg ai/ha, and trifluralin [2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenamine] at 1.7 kg ai/ha. Junglerice [Echinochloa colonum (L.) Link. # ECHCO] control was 80% with alachlor but 90% or more with metolachlor and trifluralin when applied at the same rates. Sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one} at 560, fluazifop {(±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl] oxy]phenoxy]propanoic acid} at 280, haloxyfop {2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid} at 140, and mefluidide {N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl] amino] phenyl] acetamide} plus bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4 (3H)-one 2,2-dioxide] at 140 plus 840 g ai/ha applied postemergence on two- to four-leaf red rice provided at least 87% control. Junglerice control with these treatments was 85% or more with the exception of fluazifop and mefluidide plus bentazon.

Keywords

AlachlormetolachlortrifluralinpendimethalinfluchloralinsethoxydimfluazifophaloxyfopDPX Y6202mefluididebentazonORYSAECHCOCYRIR
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 34 , Issue 4 , July 1986 , pp. 582 - 586
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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