The Korean Journal of Pesticide Science (농약과학회지)

The Korean Society of Pesticide Science (한국농약과학회)
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In Vitro Antifungal Activities of 13 Fungicides against Pepper Anthracnose Fungi

고추 탄저병균에 대한 13종 살균제의 살균 활성

  • Choi, Yong-Ho (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Kim, Heung-Tae (Depatment of Plant Medicine, College of Agriculture, Life and Environment Science, Chungbuk National University) ;
  • Kim, Jin-Cheol (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Jang, Kyoung-Soo (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Cho, Kwang-Yun (Biological Function Research Team, Korea Research Institute of Chemical Technology) ;
  • Choi, Gyung-Ja (Biological Function Research Team, Korea Research Institute of Chemical Technology)
  • 최용호 (한국화학연구원 생물기능연구팀) ;
  • 김흥태 (충북대학교 식물의학과) ;
  • 김진철 (한국화학연구원 생물기능연구팀) ;
  • 장경수 (한국화학연구원 생물기능연구팀) ;
  • 조광연 (한국화학연구원 생물기능연구팀) ;
  • 최경자 (한국화학연구원 생물기능연구팀)
  • Published : 2006.03.31
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Abstract

For the effective control of pepper anthracnose, in vitro antifungal activities of 13 commercial fungicides were tested on spore germination, mycelial growth, and sporulation of Colletotrichum gloeosporioides, anthracnose fungus. Among them, captan, chlorothalonil, dithianon, fluazinam and folpet completely inhibited the spore germination of C. gloeosporioides at the concentration of 0.8 ${\mu}g/ml$. They were followed by mancozeb and propineb, showing more than 80% inhibition of spore germination at 20 ${\mu}g/ml$. The mycelial growth of C. gloeosporioides was strongly inhibited by fluazinam and nuarimol. Except for nuarimol, most of the fungicides represented more antifungal activity on the spore germination than the mycelial growth of C. gloeosporioides. Azoxystrobin and metominostrobin, Strobilurin fungicides, were only moderately active against the spore germination and the mycelial growth of C. gloeosporioides, but they were effective antisporulant against C. gloeosporioides. From these results, control of pepper anthracnose will have achieved by preventive spray of the commercial fungicides.

효율적인 고추 탄저병 방제를 위하여, Colletotrichum gloeosporioides에 대한 살균제 13종의 포자 발아, 균사 생장 및 포자 형성 억제효과를 실험하였다. 이들 살균제 중 captan과 chlorothalonil, dithianon, fluazinam 및 folpet은 0.8 ${\mu}g/ml$ 농도에서 C. gloeosporioides 포자의 발아를 완전히 억제하였다. 이들 살균제 보다 억제효과는 낮았으나, mancozeb와 propineb도 20 ${\mu}g/ml$에서 80% 이상의 포자 발아 억제율을 나타내었다. 고추 탄저병균의 균사 생장은 fluazinam과 nuarimol에 의해 강하게 억제되었다. Nuarimol을 제외한 살균제들은 C. gloeosporioides의 균사 생장보다 포자 발아를 더 효과적으로 억제하였다. 그리고 Strobilurin계 살균제인 azoxystrobin과 metominostrobin은 고추 탄저병균의 포자 발아와 균사 생장에 대한 억제효과는 낮았으나, 포자 형성을 효과적으로 억제하였다. 그러므로 nuarimol을 제외한 이들 살균제를 이용한 고추 탄저병 방제는 주로 예방적으로 약제를 처리하여야 할 것으로 생각되었다.

Keywords

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