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http://dx.doi.org/10.5660/KJWS.2011.31.2.183

Weeding Effect of Echinochloa oryzoides Resistant to ACCase and ALS Inhibitors by the Leaf Stages  

Lee, In-Yong (Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
Kwon, Oh-Do (Jeonnam Agricultural Research and Extension Services)
Kim, Chang-Seok (Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
Lee, Jeong-Ran (Department of Agricultural Biology, National Academy of Agricultural Science, RDA)
Shin, Hae-Ryoung (Jeonnam Agricultural Research and Extension Services)
Moon, Byung-Chul (Department of Agro-Food Safety, National Academy of Agricultural Science, RDA)
Park, Jae-Eup (Department of Agro-Food Safety, National Academy of Agricultural Science, RDA)
Kuk, Yong-In (Dept. of Development in Resources, College of Life Science and Natural Resources, Sunchon National University)
Publication Information
Korean Journal of Weed Science / v.31, no.2, 2011 , pp. 183-191 More about this Journal
Abstract
Weeding effect was investigated based on the leaf stages to several different herbicide treatments for an integrated weed management of herbicide resistant Echinochloa oryzoides to ACCase and ALS inhibitors in a rice field. Efficacy of soil-applied herbicide treatments before resistant E. oryzoides occurred was very effective. Pentaxazon 5% SC showed over 98% of weeding effect although E. oryzoides were emerged 31 days after the treatment. Until the leaf stage of 2.5, five herbicides, azimsulfuron carfenstole 1.05% GR, bensulfuron-methyl benzobicyclone mefenacet 24.52% SC, bensulfuron-methyl fentrazamide 7% SC, bensulfuron-methyl mefenacet oxadiargyl 21.6% SC and mefenacet pyrazosulfuron-ethyl 3.57% GR showed perfect weeding effect. Benzobicyclone mefenacet penoxulam 21.5% SC and mefenacet pyrazosulfuron-ethyl 3.57% GR were effective at the leaf stage of 3.0. It is very important to select the right herbicides for timing and their systematic application for controlling of E. oryzoides resistant to ACCase- and ALS-inhibitors.
Keywords
ACCase; ALS; Echinochloa oryzoides; herbicide resistance;
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Times Cited By KSCI : 8  (Citation Analysis)
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