토양검정법을 활용한 충북지역 ALS 저해제 제초제 저항성 논잡초 발생 현황

This study was conducted to investigate the occurrence of an acetolactate synthase (ALS) inhibiting herbicide resistant weed on paddy at 289 sites by soil sampling in Chungcheongbuk-Do of Republic of Korea from February to April in 2017. The most dominant weed was Monochoria vaginalis and Echinochlo...

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Published inWeed & turfgrass science Vol. 7; no. 3; pp. 181 - 190
Main Authors 이채영(Chae Young Lee), 최예슬(Ye Seul Choi), 이희두(Hee Doo Lee), 김영호(Young Ho Kim), 홍성택(Seong Taek Hong), 우선희(Sun Hee Woo), 이정란(Jeongran Lee)
Format Journal Article
LanguageKorean
Published 한국잡초학회·한국잔디학회 2018
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ISSN2287-7924
2288-3312

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Summary:This study was conducted to investigate the occurrence of an acetolactate synthase (ALS) inhibiting herbicide resistant weed on paddy at 289 sites by soil sampling in Chungcheongbuk-Do of Republic of Korea from February to April in 2017. The most dominant weed was Monochoria vaginalis and Echinochloa oryzicola on each city and county. ALS inhibiting herbicide resistant ratio and occurrence area were 80.6% and 28,272 ha, respectively, in Chungcheongbuk-Do which was 3 times than in 5 years ago. The herbicide resistant ratio, Okcheon-Gun was the highest at 93.8%, Chungju-Si, Boeun-Gun, Yeongdong-Gun, Jincheon-Gun and Geosan-Gun were over 80%, Cheongju-Si, Eumseong-Gun and Jeungpyeong-Gun were over 70%. The herbicide resistant area, Cheongju-Si had the largest at 6,957 ha, Chungju-Si was 4,277 ha, Jincheon-Gun and Boeun-Gun was 3,536 ha and 3,282 ha, respectively. By weed, ALS inhibiting herbicide resistant ratio and occurrence area, Monochoria vaginalis was 49%, 17,646 ha, Echinochloa oryzicola 44%, 15,617 ha, Schoenoplectiella juncoides 29%, 10,377 ha, respectively. In all cities and counties of Chungcheongbuk-Do, Monochoria vaginalis and Echinochloa oryzicola are more than 40% resistant to ALS inhibiting herbicides, intensive management is required. The use of sulfonylurea herbicides is increasing, most farmers use herbicides 10 days after transplanting, so management after transplanting is necessary and the occurrence of herbicide resistant weeds should be reduced by alternating herbicide application every year. 본 연구는 2017년 2월부터 4월까지 충북지역 제초제 저항성 논잡초 발생현황을 조사하기 위하여 11개 시 군 289지점에서 토양시료를 채취하였다. 충북지역의 제초제 저항성 논잡초의 발생을 조사한 결과, 시 군별 최우점 잡초는 물달개비이었고, 그 다음은 강피였다. 충북지역의 제초제 저항성 잡초 발생비율과 면적은 각각 80.6%, 28,272 ha로 지난 2012년 보다 3배 증가하였다. 옥천군의 저항성 발생율이 93.8%로 가장 높았고, 충주시, 보은군, 영동군, 진천군과 괴산군이 80% 이상, 청주시, 음성군, 증평군이 70% 이상으로 높은 수준이었다. 발생면적은 청주시가 6,957 ha로 가장 많았고, 충주시, 진천군, 보은군, 음성군의 순으로 높았다. 초종별 제초제 저항성 비율과 면적은 물달개비 49%, 17,646 ha, 강피 44%, 15,617 ha, 올챙이고랭이 29%, 10,377 ha의 순으로 발생하였다. 충북지역 모든 지역에서 물달개비와 강피는 acetolactate synthase (ALS) 저해제 제초제에 저항성이 40% 이상이므로 집중적인 관리가 필요하며, 현재 설포닐우레아계 제초제 사용이 증가하고 있고, 대부분의 농가가 이앙 후 10일 이전에 제초제를 사용하기 때문에 이앙 후에도 관리가 필요하며, 매년 적용 제초제를 교호 살포하는 방법으로 제초제 저항성 잡초의 발생을 줄여야 하겠다.
Bibliography:KISTI1.1003/JNL.JAKO201831854885119
ISSN:2287-7924
2288-3312