농약과학회지 (The Korean Journal of Pesticide Science)

  • 제9권1호
  • /
  • Pages.81-87
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  • 2005
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  • 1226-6183(pISSN)
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  • 2287-2051(eISSN)
한국농약과학회 (The Korean Society of Pesticide Science)
권호 표지

Ethaboxam의 배추 뿌리혹병 방제효과

Control Efficacy of Ethaboxam on Chinese Cabbage Clubroot Caused by Plasmodiophora brassicae

  • 최경자 (한국화학연구원 생물기능연구팀) ;
  • 장경수 (한국화학연구원 생물기능연구팀) ;
  • 김진철 (한국화학연구원 생물기능연구팀) ;
  • 임희경 (한국화학연구원 생물기능연구팀) ;
  • 전삼재 (LG생명과학기술연구원 정밀화학연구그룹) ;
  • 김달수 (LG생명과학기술연구원 정밀화학연구그룹) ;
  • 조광연 (한국화학연구원 생물기능연구팀)
  • Choi, Gyung-Ja (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Jang, Kyoung-Soo (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Kim, Jin-Cheol (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Lim, He-Kyoung (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Chun, Sam-Jae (Specialty Chemicals Research Group, LG Life Sciences Ltd. R&D Park) ;
  • Kim, Dal-Soo (Specialty Chemicals Research Group, LG Life Sciences Ltd. R&D Park) ;
  • Cho, Kwang-Yun (Biological Function Research Team, Korea Research Institute of Chemical Technology)
  • 발행 : 2005.03.31
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초록

Ethaboxam[(RS)-N-(a-cyano-2-thenyl)-4-ethyl-2-(ethylamino)-1,3-thiazole-5-carboximide]은 난균강 미생물에 대하여 우수한 살균활성을 보이는 신규 살균제이다. Ethaboxam 원제와 몇 가지 ethaboxam 제형의 배추 뿌리혹병에 대한 방제효과를 조사하였다. Ethaboxam을 관주처리 하였을 때, 토양 1 L 당 8.33 mg 농도 처리구는 배추 뿌리의 혹 형성이 완전히 억제되었으며, $EC_{50}$ 값은 2.65 mg/L 토양이었다. Ethaboxam 5개 제형(10% 액상수화제, 15% 액상수화제, 2% 입제, 5% 입제, 25% 수화제) 그리고 ethaboxam과 metalaxyl 합제 제형(3%+1% 입제)의 배추 뿌리혹병 방제효과는 우수하였다. 이들 중 토양 관주처리 한 ethaboxam의 10% 및 15% 액상수화제, 토양 혼화처리 한 ethaboxam 2% 입제 제형은 다른 제형보다 배추 뿌리혹병에 대하여 더 우수한 방제효과를 보였다. 이들의 배추 뿌리혹병에 대한 $EC_{50}$ 값은 원제기준으로 토양 L 당 각각 3.72 mg(10% 액상수화제), 1.10 mg (15% 액상수화제), 4.95 mg (2% 입제) 이었다. 그러므로 실험한 ethaboxam 6개 제형 중에 15% 액상수화제가 배추 뿌리혹병에 대하여 가장 우수한 방제효과를 나타냄을 알 수 있었다. 이들 결과로부터 ethaboxam은 포장에서도 배추 뿌리혹병을 효과적으로 방제할 수 있으리라 생각되었다.

Ethaboxam[(RS)-N-(a-cyano-2-thenyl)-4-ethyl-2-(ethylamino)-1,3-thiazole-5-carboximide] is a novel fungicide with high level of activity against Oomycetes fungi. The control effects of ethaboxam technical and various ethaboxam formulations were investigated against P. brassicae, the causal agent of clubroot disease in Chinese cabbage. When ethaboxam was applied to infested soil, club formation caused by P. brassicae was strongly inhibited at 8.33 mg/L soil and $EC_{50}$ of ethaboxam was 2.65 mg/L soil. Five ethaboxam formulations [10% suspension concentrate (SC), 15% SC, 2% granule (GR), 5% GR, 25% wettable powder] and mixture formulation of ethaboxam and metalaxyl (3%+1% GR) exhibited good efficacy against the pathogen. 10% SC, 15% SC, and 2% GR formulations of ethaboxam showed better disease controlling efficacy on Chinese cabbage clubroot than the other formulations. The $EC_{50}$ values of 10% SC, 15% SC, and 2% GR formulations of ethaboxam were 3.72 mg AI/L soil, 1.1 mg AI/L soil, and 4.95 mg AI/L soil, respectively. Among them, soil drenching application by 15% SC formulation of ethaboxam exhibited the most in vivo antifungal activity on P. brassicae. These results indicate that ethaboxam has a high potential for the control of clubroot disease.

키워드

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