Disease Analysis and Pathogen Identification of Black Spot Disease of Chinese Cabbage [Alternaria brassicae (Berk.) Sace.] in Bijie City  

毕节市白菜黑斑病的病害研究及病原鉴定(英文)

作　　者：张国辉[1] 陶敏[1] 张文华[1] 

机构地区：[1]凯里学院环境与生命科学分院,贵州凯里556011

出　　处：《Plant Diseases and Pests》2011年第4期24-26,共3页植物病虫害研究（英文版）

摘　　要：[Objective] Disease analysis and pathogen identification of black spot disease of Chinese cabbage [Alternaria brassicae（Berk.） Sace.] in Bijie City of Guizhou Province was carried out,so as to raise the corresponding prevention measures.[Method] Pathogen was isolated from diseased leaves using tissue surface separation method for cultivation,microscopic examination,spore size determination and pathogen identification.[Result] Microscopic examination showed that the disease was caused by Alternaria sp.,the size of its spores was（15.0-38.5） μm×（7.5-13.5） μm.Combining with the characteristics of host and pathogen,the pathogen caused black spot disease of Chinese cabbage was identified to be Alternaria brassicicola.[Conclusion] A.brassicicola was the pathogenic fungi of black spot disease of Chinese cabbage in Bijie City of Guizhou Province,and damage caused by the disease could be reduced through agricultural measures and chemical control.[Objective] Disease analysis and pathogen identification of black spot disease of Chinese cabbage [Alternaria brassicae（Berk.） Sace.] in Bijie City of Guizhou Province was carried out,so as to raise the corresponding prevention measures.[Method] Pathogen was isolated from diseased leaves using tissue surface separation method for cultivation,microscopic examination,spore size determination and pathogen identification.[Result] Microscopic examination showed that the disease was caused by Alternaria sp.,the size of its spores was（15.0-38.5） μm×（7.5-13.5） μm.Combining with the characteristics of host and pathogen,the pathogen caused black spot disease of Chinese cabbage was identified to be Alternaria brassicicola.[Conclusion] A.brassicicola was the pathogenic fungi of black spot disease of Chinese cabbage in Bijie City of Guizhou Province,and damage caused by the disease could be reduced through agricultural measures and chemical control.

关 键 词：Chinese cabbage Black spot disease PATHOGEN Alternaria brassicicola China 

分 类 号：S436.34[农业科学—农业昆虫与害虫防治]