Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Effective Weed Control in Paddy Field Simultaneously Dominated by Herbicide-Resistant Weeds, Echinochloa oryzoicola, Monochoria vaginalis and Scirpus juncoides

제초제 저항성 잡초 강피, 물달개비, 올챙이고랭이 동시 우점한 논에서 효과적인 제초관리

  • 박태선 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 조현숙 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 황재복 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 구본일 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 김학신 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 서명철 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 박홍규 (농촌진흥청 국립식량과학원 작물재배생리과) ;
  • 이건휘 (농촌진흥청 국립식량과학원 작물재배생리과)
  • Received : 2015.08.11
  • Accepted : 2015.09.02
  • Published : 2015.09.30
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Abstract

This study was conducted to establish the effective weed management methods in rice field simultaneously dominated by the herbicide resistant Echinochloa oryzicola, Monochoria vaginalis and Scirpus juncoides. Herbicides registered for use before transplanting, oxadiazon 12% EC, pyrazolate 36% SC, pretilachlor 14% EC and thiobencarb 50% EC were effective until 0.5 leaf stage of herbicide resistant Echinochloa oryzoides. Herbicides registered for use after transplanting, fentrazamide 1% GR and mefenacet 18% SC were effective until 2 leaf stage of herbicide resistant Echinochloa oryzicola and triafamone 0.98% SC was possible to control up to 4 leaf stage. HPPD inhibitors, benzobicyclon, mesotrione and tefuryltrione SC, were simultaneously effective to SU herbicide-resistant Monochoria vaginalis and Scirpus juncoides. Herbicides registered for use before transplanting, benzobicyclon + oxadiargyl EC out of the tested herbicide was most effective in rice field simultaneously dominated by the herbicide resistant Echinochloa oryzicola, Monochoria vaginalis and Scirpus juncoides. Its effectiveness rises in proportion to flooding duration. Mazosulfuron GR, a herbicides registered for use after transplanting was most effective without phytotoxicity until 60 days after transplanting in rice field simultaneously dominated by the herbicide resistant Echinochloa oryzicola.

본 실험은 ACCase 및 ALS 저해제들에 대한 저항성 강피와 sufonylurea (SU)계 제초제들에 대한 저항성 물달개비 및 올챙이고랭이가 동시에 우점한 논에서 이들 잡초들을 효과적으로 방제하는 방법을 구명하기 위하여 실시하였다. 인공기상실 실험에서 저항성 강피 0.5엽기까지는 이앙 전에 사용하는 oxadiazon 12% 유제, pyrazolate 36% 액상수화제, pretilachlor 14% 유제 그리고 thiobencar 50% 유제들이 완전하게 방제하였다. Fentrazamide 1% 입제와 mefenacet 18% 액상수화제는 저항성 강피 2엽기까지, 그리고 triafamone 0.98% 액상수화제는 4엽기까지 효과적으로 방제되었다. SU계 제초제들에 대한 저항성 물달개비와 올채이고랭이는 HPPD 저해제들인 benzobicyclon, mesotrione 그리고 tefuryltrione 액상수화제들이 효과적이었다. 한편, 제초제 저항성 강피, 물달개비 그리고 올챙이고랭이가 동시적으로 우점한 논에서 이앙 전 처리제들 중에서 benzobicyclon + oxadiargyl 유제가 가장 효가 좋았다. 그리고 올챙이고랭이가 동시적으로 우점한 논에서 이앙 후 12일에 처리한 제초제들 중에서 matazosulfuron입제가 이앙 후 60일까지 가장 효과적이었다.

Keywords

References

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