Control of Pepper Anthracnose Caused by Colletotrichum acutatum using Alternate Application of Agricultural Organic Materials and Iminoctadine tris + thiram

유기농업자재와 유기합성 살균제(Iminoctadine tris + thiram) 교호살포에 따른 고추 탄저병 방제 효과

  • Hong, Sung-Jun (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Kim, Yong-Ki (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Jee, Hyeong-Jin (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Shim, Chang-Ki (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Kim, Min-Jeong (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Park, Jong-Ho (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Han, Eun-Jung (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Kim, Jung-Hyun (Organic Agriculture Division, National Institute of Agricultural Science, RDA) ;
  • Kim, Seok-Cheol (Organic Agriculture Division, National Institute of Agricultural Science, RDA)
  • 홍성준 (국립농업과학원 유기농업과) ;
  • 김용기 (국립농업과학원 유기농업과) ;
  • 지형진 (국립농업과학원 유기농업과) ;
  • 심창기 (국립농업과학원 유기농업과) ;
  • 김민정 (국립농업과학원 유기농업과) ;
  • 박종호 (국립농업과학원 유기농업과) ;
  • 한은정 (국립농업과학원 유기농업과) ;
  • 김정현 (국립농업과학원 유기농업과) ;
  • 김석철 (국립농업과학원 유기농업과)
  • Received : 2015.11.02
  • Accepted : 2015.12.09
  • Published : 2015.12.31


Pepper anthracnose caused by Collectotrichum acutaum has been known as one of the most damaging diseases of pepper, which has reduced not only yield but also quality of pepper produce almost every year. This study was conducted to develop control strategy against pepper anthracnose by alternate application of agricultural organic materials and chemical fungicides. The alternate application effect of agricultural organic materials and chemical fungicides for controlling pepper anthracnose were examined in vitro and in the field. First, thirteen microbial agents and twenty two agricultural organic materials were screened for antifungal activity against C. acutatum through the dual culture method and bioassay. As a result, one microbial agent (Bacillus subtilis QST-713) and three agricultural organic materials (sulfur, bordeaux mixture, marine algae extracts) were found to show high inhibition effect against C. acutatum. In the field test, when Iminoctadine tris+thiram, a chemical fungicide for controlling pepper anthracnose, was sprayed, it reduced disease incidence by 89.5%. Meanwhile Sulfur, bordeaux mixture, copper, marine algae extracts and Bacillus subtilis QST-713 showed low disease incidence at the range of 33.1~81.0%. However, when Iminoctadine tris+thiram and agricultural organic materials(bordeaux mixture, marine algae extracts) were applied to pepper fruits alternately two times at 7 days interval, there was a 81.7 and 87.1% reduction in disease, respectively. Consequently, the alternate spray of chemical fungicide (Iminoctadine tris+thiram) and agricultural organic materials (bordeaux mixture, marine algae extracts) could be recommended as a control method to reduce the using amount of chemical fungicide.


Supported by : 국립농업과학원


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