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1994年12月份,笔者在黑龙江省拜泉县拜泉镇效区温室栽培的越冬芫荽上,发现一种新病害,经过两年的观察及进行标本鉴定,确定为芫荽菌核病。芫荽一般无病害发生。此病害目前尚无报道。 一、危害症状 芫荽菌核病为害芫荽茎、叶。受害部初呈褐色水浸状,湿度大时形成软腐,表面生出白色菌丝,后形成白色菌核,最后形成鼠粪状黑色菌核。菌核一般长在腐败的茎基部,烂叶叶柄等组织上,造成芫荽植株成片死亡。
In December 1994, the author found a new disease in winter greenhouse coriander cultivated in greenhouse of Baiquan town, Heilongjiang province. After two years of observation and specimen identification, it was identified as coronatine sclerotinia. Coriander generally disease-free. This disease is not reported yet. First, the harm symptoms Coriander scabies cornicularia stem damage, leaves. At the beginning of the victim was brown water-soaked, the formation of soft rot at high humidity, the surface of white mycelium, the formation of white sclerotia, and finally the formation of murine black sclerotia. Sclerotinia usually grow on the base of rotten stems, rotten petioles and other tissues, resulting in death of coriander plant into pieces.