Research in Plant Disease (식물병연구)

The Korean Society of Plant Pathology (한국식물병리학회)
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Occurrence of Leaf Spot on Eriobotrya japonica Caused by Entomosporium mespili in Korea

Entomosporium mespili에 의한 비파나무 점무늬병 발생

  • Seo, Sang-Tae (Division of Forest Diseases and Insect Pests, Korea Forest Research Institute) ;
  • Park, Mi-Jeong (Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University) ;
  • Shin, Hyeon-Dong (Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University) ;
  • Kim, Kyung-Hee (Division of Forest Diseases and Insect Pests, Korea Forest Research Institute)
  • 서상태 (국립산림과학원 산림병해충연구과) ;
  • 박미정 (고려대학교 생명과학대학 환경생태공학부) ;
  • 신현동 (고려대학교 생명과학대학 환경생태공학부) ;
  • 김경희 (국립산림과학원 산림병해충연구과)
  • Received : 2011.06.21
  • Accepted : 2011.07.25
  • Published : 2011.08.31
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Abstract

Since 2008, a new leaf spot disease has been found in loquat tree (Eriobotrya japonica) at a nursery station in Goheung, Korea. Above 50% of the seedlings developed the spot symptoms on the leaves. The infected plants were generally reduced in the seedling vigour and early defoliation was occurred. The infected leaves developed grayish lesion with dark reddish brown margin. The pathogen developed round to ellipsoidal acervuli on the lesion. Based on morphological characteristics of the pathogen, the fungus was identified as Entomosporium mespili. The cultured pathogen successfully reproduced the same disease symptom on the leaves of loquat tree and found to be E. mespili. A monoconidial culture was deposited in Korean Agricultural Culture Collection (KACC 44727). This is the first report of E. mespili causing leaf spot of loquat tree in Korea.

2008년부터 매년 전라남도 고흥군에 위치한 비파나무 묘포장에서 잎에 점무늬 증상이 관찰되었다. 전체 묘목의 50% 이상에서 이러한 증상이 나타났으며, 결국 잎이 일찍 떨어지고 수세가 약화되는 피해가 나타났다. 병반으로부터 관찰된 균은 Entomosporium mespili로 동정되었다. 이 균은 단포자 분리되어 KACC 44727 균주로 보존되었다. 인공접종 실험을 통하여 병원성을 검정하여 코흐의 원칙과 일치하였다. 따라서 국내에 비파나무 점무늬병을 처음으로 보고한다.

Keywords

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