Occurrence of Leaf Blight of Sweet Persimmon Tree Caused by Pestalotiopsis theae in Korea

단감나무 둥근갈색무늬병의 발생 상태

  • 장태현 ((주) 대유 식물영양연구소) ;
  • 임태헌 (충북대학교 농생물학과) ;
  • 정봉구 ((주) 대유 식물영양연구소)
  • Published : 1999.04.01

Abstract

Leaf blight outbreak was investigated in sweet persimmon tree orchards in Korea during a three-year period from 1995 to 1997. The man percentage of sweet perismmon leaves blighted by Pestalotiopsis theae was 15.9%. The highest disease incidence was surveyed to 20% in Milryang. The disease began from early June to late October, and peaked in September and October. The lesion size on leaf ranged mainly 1-3 cm. The typical symptoms were large grayish concentric lesions of oval patterns of either mesophyll or margin of the leaf, and olde trees were more susceptible than younger ones.

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