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本文系统报道了细辛叶枯病病原学、发生规律及其综合防治的研究结果.该病是一种毁灭性新病害。病原菌为槭菌刺孢(Mycocentrospora acerina(Hartig)Deighton),属中国真菌新记录种.采用菌块切割水滴保温产孢法解决了病菌人工培养不能形成分生孢子的难题.在人工培养条件下,病菌可以产生红色素.越冬分生孢子具有极强的再生能力,为病害初浸染提供大量菌源.低温高湿强光加在病害流行.采用种苗消毒、田园卫生、遮荫栽培和药剂防治等综合措施可以有效地控制发病.
This paper systematically reports on the etiology of Occurrences of Siberian Blight, the occurrence of the law and the results of its comprehensive prevention and treatment. The disease is a devastating new disease. The pathogen is Mycocentrospora acerina (Hartig) Deighton, which belongs to a new recorded species of fungi in China. The use of bacteria block cutting water droplets insulation spores method to solve the problem of artificial culture can not form conidia. Under artificial cultivation conditions, the bacteria can produce red pigment. Overwintering conidia have a very strong ability to regenerate, providing a large number of bacterial sources for the initial infection of the disease. Low temperature and humidity light plus disease epidemic. The use of seedling disinfection, pastoral health, shade cultivation and pharmaceutical control and other comprehensive measures can effectively control the incidence.