1979년 7월 경남 김해에서 딸기 성강 16호의 잎에 흑갈색 내지 암갈색 병반을 형성하는 병해를 발견, 그 병원균을 분리 검토한 결과 우리나라에서는 미기록병해인 Alternaria alternate (Fr.) Keissler로 동정되었으며 본병을 검은무늬병이라 명명하였다. 본균의 분생포자의 형태는 배지간에 차가 심하였으며 C.M.A.에서 평균 , beak의 길이는 으로서 자연감염된 딸기잎상에서 형성된 것 보다 짧았다. 딸기 49품종에 접종한 결과 성강 16호와 Robinson이 고도감수성이였으며 Catskill, Cyclone, Northwest, Merton princes, Juspa, 및 대학 1호 등의 품종에도 발병을 볼 수 있었으나 31 품종은 전연 발병되지 않았다. 10종(14품종)에 접종한 결과 해바라기, 겹해바라기, 및 멕시코 해바라기에만 심하게 발병되었다.

A new disease of strawberry caused by Alternaria was found in Gim Hae, Gyougnam province, in July 1979. The symptoms of the disease occurred mainly on leaves as showing dark brown spots with circular to irregular, in diameter. The pathogen was identified as Alternaria alternate (Fr.) Keissler which has not been described in Korea as a pathogen of strawberry disease. The common name of the disease was given as Gum un mum byung of strawberry. The conidia shape and size of this fungus varied considerably with culture media. The measurements of conidia and beak on corn meal agar were , respectively, which were shorter than those on strawberry leaf lesions in the field. Among 49 strawberry varieties tested, Morioca 16 and Robinson were highly susceptible to the disease by artificial inoculation and Catskill, Cyclone, Northwest, Merton princess, Juspa and Daehak I were moderately susceptible whereas 31 varieties were resistant. This fungus could also infect the leaf of Common garden sunflower, Double sunflower and Mexican sunflower among the 14 plants species tested

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