• Title/Summary/Keyword: Eleochairs kuroguwai

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Effect of Molinate, Simetryn and Imazosulfuron U-Granule Application on Bioefficacy and Phytotoxicity in Rice Paddy (Molinate와 Simetryn 및 Imazosulfuron 수면부상성(水面浮上性) 입제(粒劑)의 시용효과(施用效果))

  • Choi, S.Y.;Chung, B.J.;Chae, J.C.
    • Korean Journal of Weed Science
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    • v.18 no.4
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    • pp.341-347
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    • 1998

  • This study was carried out to investigate the effect of U-Granule formulation of molinate(S-ethylhexaphdro-1H-azepine-1-carbothioate) mixtures in green house and paddy field, Five minutes were taken for U-Granule to spread out 7m in irrigated water of direct seeded on flooded paddy surface. The concentration of active ingredient of molinate in molinate U-Granule application was similar to molinate+simetryn U-Granule application. But weeding effect of molinate+simetryn U-Granule on Echinochlor crus-galli was 23% higher Than single application of molinate at 7m from application point. Bioefficacy of molinate+simetryn+imazosulfuron U-Granule on control of Echinochloa crus-galli was higher than that of molinzte+imazosulfuton U-Granule, but those effect on Eleochairs kuroguwai was not significantly different. Only slight rice phytotoxicity was observed at 5m and 2m from application point of U-Granule molinate+simetryn+imazosulfuron and molinate+imazosulfuron, respectively. So it is concluded that there is little phytotoxicity problem in practical application of U-Granule of molinate mixtures.

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