Weed & Turfgrass Science

The Korean Society of Weed Science & The Turfgrass Society of Korea Archive (한국잡초학회 & 한국잔디학회)
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Occurrence and Distribution of Herbicide Resistant Weeds in the Paddy Field of Chungnam Province

충남지역에서의 제초제 저항성 논 잡초 발생 및 분포

  • Won, Ok Jae (Department of Crop Science, Chungnam National University) ;
  • Jia, Wei Qiang (Department of Crop Science, Chungnam National University) ;
  • Lee, Jeung Joo (Department of Plant Medicine, IALS, Gyeongsang National University) ;
  • Kim, Jin-Won (Crop Protection Division, National Institute of Agricultural Sciences, RDA) ;
  • Lee, Jeongran (Crop Protection Division, National Institute of Agricultural Sciences, RDA) ;
  • Park, Kee Woong (Department of Crop Science, Chungnam National University)
  • 원옥재 (충남대학교 농업생명과학대학 식물자원학과) ;
  • 가유강 (충남대학교 농업생명과학대학 식물자원학과) ;
  • 이증주 (경상대학교 식물의학과, 농업생명과학연구원) ;
  • 김진원 (국립농업과학원 농산물안전성부 작물보호과) ;
  • 이정란 (국립농업과학원 농산물안전성부 작물보호과) ;
  • 박기웅 (충남대학교 농업생명과학대학 식물자원학과)
  • Received : 2018.09.10
  • Accepted : 2018.09.27
  • Published : 2018.09.30
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Abstract

This study was conducted to investigate the occurrence and distribution of herbicide resistant weeds at rice fields in Chungnam province of Korea in 2017. Herbicide-resistant weeds occurred in 64,782 ha, which comprise 47.0% of the total paddy field area of Chungnam province. The infested area of herbicide resistant weeds was estimated in Seosan-si (11.9%), Nonsan-si (11.1%), Dangjin-si (10.9%), Boryeong-si (9.2%) and Asan-si (7.8%). The most dominant herbicide resistant weeds in rice fields were Monochoria vaginalis, followed by Lindernia dubia, Schoenoplectus juncoides, Echinochloa oryzicola, Cyperus difformis and Sagittaria trifolia. Herbicide resistant M. vaginalis, L. dubia, and S. juncoides occurred throughout Chungnam province, and herbicide resistant S. trifolia was only found in Dangjin-si. Compared with the 2011 survey, the infested area of herbicide-resistant weeds decreased, but the incidence rates were similar. The herbicide rotation with different modes of actions across growing seasons is recommended to control herbicide-resistant weeds in the infested fields. It is necessary to monitor herbicide resistance regularly and conduct integrated herbicide resistance management in this area.

본 연구는 충청남도에서 ALS 제초제 저항성 논 잡초의 발생과 분포를 조사하기 위해 2017년도에 수행되었다. 충청남도 전체 논 재배면적의 47.0%인 64,782 ha에서 제초제 저항성 논 잡초가 발생하였다. 상위 5개 시 군별 제초제 저항성 잡초 발생면적은 서산시 11.9%, 논산시 11.1%, 당진시 10.9%, 보령시 9.2%, 아산시 7.8% 순이었다. 제초제 저항성 잡초종별 발생을 보면 물달개비가 가장 많았고, 다음으로 미국외풀, 올챙이고랭이, 강피, 알방동사니, 벗풀 순이었다. 제초제 저항성 물달개비, 미국외풀, 올챙이고랭이는 충청남도 전역에 분포하였으며, 벗풀은 당진시에서만 발생하였다. 2011년도 제초제 저항성 잡초 조사와 비교하여 제초제 저항성 잡초 발생면적은 감소하였으나, 제초제 저항성 잡초 발생률은 2011년도의 47.6%와 유사하였다. 제초제 저항성 잡초를 방제하기 위해서는 흔히 다른 작용기작을 지닌 제초제들과 병용하거나 교호로 처리하여야 하며 제초제 저항성 잡초의 주기적인 모니터링과 종합적인 제초제 저항성 관리체계가 필요하다.

Keywords

References

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