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Control of Propanil-Resistant Barnyardgrass (Echinochloa crus-galli) in Rice (Oryza sativa) with Carbaryl/Propanil Mixtures

Published online by Cambridge University Press:  12 June 2017

Hassane Daou  and
Ronald E. Talbert
Hassane Daou
Affiliation:
Department of Agronomy, University of Arkansas, Fayetteville 72701
Ronald E. Talbert*
Affiliation:
Department of Agronomy, University of Arkansas, Fayetteville 72701
*
Corresponding author's E-mail: rtalbert@comp.uark.edu.
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Abstract

Propanil and carbaryl mixtures, propanil formulated with carbaryl, the package mixture of propanil plus molinate (alone and plus pendimethalin), propanil plus quinclorac, and propanil plus pendimethalin were evaluated in field experiments for control of propanil-resistant and -susceptible barnyardgrass in 1995 and 1996 in Arkansas. Propanil alone at 3.3 kg ai/ha did not control propanil-resistant barnyardgrass when applied to two-leaf and repeated at four-leaf barnyardgrass. Propanil at 3.3 kg/ha with carbaryl at 0.1 to 0.3 kg ai/ha controlled propanil-resistant barnyardgrass at least 90% when applied at the two-leaf stage with no rice yield reduction. Applications repeated at the four-leaf stage also controlled propanil-resistant barnyardgrass, but rice injury was 66% with 0.3 kg/ha carbaryl in 1 of 2 yr, and rice yield was reduced. Control of resistant barnyardgrass with the commercial formulation of propanil plus carbaryl and propanil plus molinate was lower with a single application than with repeat applications. Propanil plus quinclorac, propanil plus pendimethalin, and propanil plus molinate plus pendimethalin controlled resistant barnyardgrass with one application at the two-leaf stage.

Keywords

Carbaryl, 1-naphthyl N-methylcarbamatemolinate, S-ethyl hexahydro-1H-azepine-1-carbothioatependimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenaminepropanil, N-(3,4-dichlorophenyl)propanamidequinclorac, 3,7-dichloro-8-quinolinecarboxylic acidbarnyardgrass, Echinochloa crus-galli (L.) Beauv. # ECHCGrice, Oryza sativa L. ‘Lemont,’ ‘Kaybonnet.'Herbicide resistancesynergismmolinatependimethalinquincloracECHCGDAT, days after treatment
Type
Research
Information
Weed Technology , Volume 13 , Issue 1 , March 1999 , pp. 65 - 70
Copyright
Copyright © 1999 by the Weed Science Society of America 

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Footnotes

1

Published with permission of the Director of the Arkansas Agricultural Experiment Station, University of Arkansas, Fayetteville, AR 72701.

Current address of first author: IER BP258, Bamako, Mali

References

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