Biocontrol of Leaf Mustard Powdery Mildew Caused by Erysiphe cruciferarm using Bacillus velezensis YP2

Bacillus velezensis YP2의 겨자채 흰가루병의 생물적 방제

  • Lee, Sang Yeob (Agricultural Microbiology Division, National Institute of Agricultural Sciences, RDA) ;
  • Weon, Hang Yeon (Agricultural Microbiology Division, National Institute of Agricultural Sciences, RDA) ;
  • Kim, Jeong Jun (Agricultural Microbiology Division, National Institute of Agricultural Sciences, RDA) ;
  • Han, Ji Hee (Agricultural Microbiology Division, National Institute of Agricultural Sciences, RDA)
  • 이상엽 (국립농업과학원 농업미생물과) ;
  • 원항연 (국립농업과학원 농업미생물과) ;
  • 김정준 (국립농업과학원 농업미생물과) ;
  • 한지희 (국립농업과학원 농업미생물과)
  • Received : 2016.10.30
  • Accepted : 2016.11.25
  • Published : 2016.12.31


Bacillus velezensis YP2 inhibited the mycelial growth of several plant pathogens including Cercespora spp., Septoria sp., Phoma sp., Botrytis cinerea and Sclerotinia scleotiorum occurring in leafy vegetables. Control efficacy for powdery mildew caused by Erysiphe cruciferarm on red leaf mustard and cheong mustard by treatment of spraying with 10-fold diluted Luria-Bertani (LB) broth of B. velezensis YP2 was 91.8% and 80.9%, respectively. When B. velezensis YP2 was treated four times with five-day interval, three times at seven-day interval and two times at ten day interval in the greenhouse test, the control effect of red leaf mustard powdery mildew was 70.6%, 65.0% and 40.9%, respectively. Also B. velezensis YP2 could promote the seed germination and plant growth of led leaf mustard. The results showed that the culture broth of B. velezensis YP2 was very effective to control the powdery mildew of leaf mustard.


Supported by : 국립농업과학원


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