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Barnyardgrass (Echinochloa crus-galli) Control in Dry-Seeded Rice (Oryza sativa) with Soil-Applied and Postemergence Herbicide Programs

Published online by Cambridge University Press:  12 June 2017

David L. Jordan ,
Donnie K. Miller  and
Stephen H. Crawford
David L. Jordan
Affiliation:
Northeast Research Station, Louisiana State University Agricultural Center, P.O. Box 438, St. Joseph, LA 71366
Donnie K. Miller
Affiliation:
Northeast Research Station, Louisiana State University Agricultural Center, P.O. Box 438, St. Joseph, LA 71366
Stephen H. Crawford
Affiliation:
Northeast Research Station, Louisiana State University Agricultural Center, P.O. Box 438, St. Joseph, LA 71366
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Abstract

A study was conducted from 1994 through 1996 to evaluate barnyardgrass control, rice yield, and estimated economic returns with delayed preemergence (DPRE) applications of pendimethalin, quinclorac, thiobencarb, pendimethalin plus quinclorac, and pendimethalin plus thiobencarb applied alone or followed by postemergence (POST) applications of propanil or propanil plus molinate. Late-season barnyardgrass control with pendimethalin plus quinclorac was greater than with pendimethalin, quinclorac, thiobencarb, or pendimethalin plus thiobencarb. Control with pendimethalin, quinclorac, and pendimethalin plus thiobencarb exceeded that with thiobencarb. Propanil plus molinate controlled barnyardgrass more effectively than propanil. Quinclorac and pendimethalin plus quinclorac were the only DPRE herbicide treatments where yield and estimated economic returns were not improved by POST herbicides.

Keywords

Molinate, 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 acidthiobencarb, S-[(4-chlorophenyl)methyl]diethylcarbamothioatebarnyardgrass, Echinochloa crus-galli (L.) Beauv. # ECHCGEstimated economic returnweed managementpendimethalinpropanilmolinatequincloracthiobencarbECHCGDPRE, delayed preemergencePOST, postemergencePRE, preemergence
Type
Research
Information
Weed Technology , Volume 12 , Issue 1 , March 1998 , pp. 69 - 73
Copyright
Copyright © 1997 by the Weed Science Society of America 

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References

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