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Damping-off of Coastal Hogfennel Caused by Rhizoctonia solani AG-4

  • Moon, Youn-Gi (Wild Vegetable Research Institute, Gangwondo Agricultural Research and Extension Services) ;
  • Kim, Se-Won (Wild Vegetable Research Institute, Gangwondo Agricultural Research and Extension Services) ;
  • Seo, Hyun-Taek (Wild Vegetable Research Institute, Gangwondo Agricultural Research and Extension Services) ;
  • Kim, Wan-Gyu (Global Agro-Consulting Corporation)
  • Received : 2020.10.26
  • Accepted : 2021.01.22
  • Published : 2021.03.31

Abstract

Damping-off symptoms were frequently observed on young plants of coastal hogfennel (Peucedanum japonicum) grown in a farmer's vinyl greenhouse located in Goseong, Gangwon Province, Korea during a disease survey in June 2019. Incidence of the diseased plants was 50-70% in the vinyl greenhouse investigated during the disease survey. Eight isolates of Rhizoctonia sp. were obtained from the diseased plants. All the isolates were identified as Rhizoctonia solani AG-4 based on the morphological characteristics and anastomosis test. Three isolates of R. solani AG-4 were tested for pathogenicity on coastal hogfennel by artificial inoculation. All the tested isolates induced damping-off symptoms on the inoculated plants. The symptoms were similar to those observed in the farmer's vinyl greenhouse investigated. This is the first report of R. solani AG-4 causing damping-off in coastal hogfennel.

Keywords

References

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