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小舌紫菀是具有开发利用价值的药用植物。紫菀春孢锈病菌(Aecidium asterum Schw.)引起小舌紫菀(Aster albescens)锈病,为国内锈菌寄主新记录。该病在四川省蜂桶寨国家自然保护区小舌紫菀生长地造成危害,病株率为100％,病叶率28％,引起叶片枯斑、脱落。小舌紫菀锈病菌的重寄生菌(Tuberculina persicinaSacc.)是小舌紫菀锈病菌上的自然重寄生菌。该重寄生菌寄生于小舌紫菀锈菌春孢子器开口处,阻碍春孢子的释放。本文报道了小舌紫菀锈病的症状特点、病原形态特征及小舌紫菀锈病菌的重寄生现象和重寄生菌的形态特征。
Small tongue aster is a medicinal plant with development and utilization value. Aecidium asterum Schw. Causes Aster albescens rust, which is a new record of domestic rust host. The disease in the bee bingzhai national nature reserve in Sichuan Province Caudatus asiatus growth hazards, the diseased rate of 100%, sick leaves rate of 28%, causing leaf spot, fall off. Tuberculina persicina Sacc. Is a naturally occurring parasite that is found on pathogen Bactrocera arguta. The parasite is parasitic on the opening of the spring spore of Puccinia triticina, hindering the release of spring spores. In this paper, we report the symptoms and signs of pathogen and the morphological features of pathogen and the re-parasitism and the morphological characteristics of parasitism.