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龙胆草斑枯病发病规律及防治技术研究
引用本文:苗春华,孙华,张卫东. 龙胆草斑枯病发病规律及防治技术研究[J]. 吉林农业科技学院学报, 2004, 0(1)
作者姓名:苗春华  孙华  张卫东
作者单位:通化市农机设计院(苗春华),通化市园艺所(孙华),通化市园艺所(张卫东)
摘    要:病菌主要以分生孢子在植株病残体、种子及土壤中越冬 ,成为初侵染源 ,在常温 2 5℃饱和湿度条件下 ,48h左右病菌就能通过气孔侵入植株叶片组织 ,在一个生长季节可多次侵染 ,并可借助雨水、风传播蔓延 ,一般病害于 6~ 8月为发病期。防治技术主要是培育壮苗、种苗消毒、土壤消毒和药剂喷药等。

关 键 词:龙胆草  斑枯病  发病规律  防治技术

Study on occurring rule and controlling techniques of spot blight of Gentiana
Miao Chunhua Sun Hua Zhang Weidong. Study on occurring rule and controlling techniques of spot blight of Gentiana[J]. Journal Of Jilin Agricultural Science And Technology College, 2004, 0(1)
Authors:Miao Chunhua Sun Hua Zhang Weidong
Affiliation:Miao Chunhua Sun Hua Zhang Weidong(Tonghua City Agricultural Machinery Designing Institute) (Tonghua City Horticultural Institute)
Abstract:The pathogen which leads to the spot blight of Gentiana live through the winter in the soil, dead body and seeds of the Gentiana mainly in the form of conidiophores. This pathogen becomes original source of infection and it can get into the leave tissue of Gentiana through the stomate at average temperature in 48 hours /The pathogen can infect several times during the one growing season and it can spread with the help of rain and wind. The disease occurs from June till August. The controlling technique of this disease is mainly by means of cultivating strong seedlings, sterilizing seeds, seedling soil and spraying the pesticide to prevent the pathogen from spreading.
Keywords:Gentiana  spot blight  developing rule  controlling technique
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