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Glufosinate Tank-Mix Combinations in Glufosinate-Resistant Rice (Oryza sativa)

Published online by Cambridge University Press:  20 January 2017

David Y. Lanclos ,
Eric P. Webster  and
Wei Zhang
David Y. Lanclos
Affiliation:
Department of Agronomy, 104 Sturgis Hall, Louisiana State University, Baton Rouge, LA 70803
Eric P. Webster*
Affiliation:
Department of Agronomy, 104 Sturgis Hall, Louisiana State University, Baton Rouge, LA 70803
Wei Zhang
Affiliation:
Department of Agronomy, 104 Sturgis Hall, Louisiana State University, Baton Rouge, LA 70803
*
Corresponding author's E-mail: ewebster@agctr.lsu.edu
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Abstract

At 14 d after treatment (DAT), glufosinate at 0.42 kg ai/ha controlled barnyardgrass and broadleaf signalgrass 85 and 86%, respectively. Antagonism occurred for barnyardgrass control with all mixtures of glufosinate at 0.42 kg/ha. At 14 DAT, no herbicide was superior to glufosinate at either rate when applied in mixture for the control of broadleaf signalgrass. Rice flatsedge control 7 DAT was 68 and 82% with glufosinate at 0.42 and 0.84 kg/ha alone, respectively. The addition of propanil and triclopyr enhanced rice flatsedge control over that with glufosinate alone at 0.42 or 0.84 kg/ha. At 7 DAT, all herbicide mixtures increased spreading dayflower control compared with a single treatment of glufosinate at 0.42 kg/ha. By 28 DAT, spreading dayflower control was less than 80% with all treatments. Rice injury was less than 15% with all treatments.

Keywords

Glufosinatepropaniltriclopyrbarnyardgrass, Echinochloa crus-galli (L.) Beauv. #3 ECHCGbroadleaf signalgrass, Bracharia platyphylla (Griseb.) Nash # BRAPPrice flatsedge, Cyperus iria L. # CYPCPspreading dayflower, Commelina diffusa Burm. f. # COMDIrice, Oryza sativa L. ‘BNGL HC-11’, ‘BNGL-62’Antagonism, synergism, tank mixDAT, days after treatmentPOST, postemergence
Type
Commentary
Information
Weed Technology , Volume 16 , Issue 3 , September 2002 , pp. 659 - 663
Copyright
Copyright © Weed Science Society of America 

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