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白菜黑斑病目前是河北省上升趋势病害,已成为白菜生产上主要障碍,该病的发生与气候条件,栽培管理等方面有密切关系,特别是温湿度为病害流行的主导因素,田间十字花科蔬菜的布局和连茬也加重病情。据观察田间植株上随叶位加深,病斑分布渐次减少,一般病斑多分布在1—8叶位,此病害种子带菌率为10.3%。本试验证明农药与糖混用是防治该病的一条新途径,既达到减轻病害发生的防治效果又能获得增产目的,初步筛选敌菌酮,敌硫酮防病效果较好,其次是白菌清等药剂。
Cabbage black spot disease is currently an upward trend in Hebei Province, has become a major obstacle in the production of cabbage, the occurrence of the disease and climatic conditions, cultivation and management are closely related, especially temperature and humidity as the dominant disease epidemic, The layout of vegetables and stubble also aggravate the disease. It is observed that with the deepening leaf position on the field plants, spots gradually reduce the distribution, the general lesion distribution in the 1-8 leaf position, the disease seed carrying rate of 10.3%. This experiment proved that pesticide and sugar mixed is a new way to control the disease, both to reduce the occurrence of disease prevention and control effects but also to achieve the purpose of increasing production, preliminary screening of pterocetones, propione thione prevention and treatment is better, followed by white bacteria Other drugs.