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猫豆是广西种植的一种特色药用植物,近年来发生一些重要病害,为明确这些病害种类,对广西猫豆主产区进行主要病害种类调查和病原鉴定。每块地采取5点取样法进行取样调查,并通过形态特征和rDNAITS序列分析结果对病原菌进行鉴定。研究结果发现,猫豆上发生的主要病害有4种,分别为猫豆炭疽病(Colletotrichum gloeosporioides)、猫豆茎溃疡病(Phomopsis sp.)、猫豆斑枯病(Alternaria sp.)和猫豆褐斑病(Pseudocercospora sp.),这些病害的发病率达30%～80%。
Catfish is a characteristic medicinal plant planted in Guangxi. In recent years, some important diseases have occurred. In order to clarify the types of these diseases, the investigation of the main disease types and the identification of pathogens in the main producing areas of cat littoon in Guangxi were conducted. Five sampling points were taken for sampling in each area, and pathogenic bacteria were identified by morphological characteristics and rDNAITS sequence analysis. The results showed that there are four main diseases on cat bean, including Colletotrichum gloeosporioides, Phomopsis sp., Alternaria sp. And cat bean Brown spot disease (Pseudocercospora sp.), The incidence of these diseases up to 30% to 80%.