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蔬菜病毒病种类繁多 ,发生普遍 ,且为害严重。据我县调查 ,大部蔬菜如 :瓜类、豆类、茄果类、叶菜类等都有病毒病为害 ,而且一年四季都有病毒病发生。一般在夏、秋遇高温干旱天气 ,蚜虫多或低洼积水、土壤缺肥情况下发病较严重。蔬菜病毒病主要靠蚜虫和农事操作汁液传毒 ,有些?
A wide variety of vegetable diseases, the occurrence of widespread, and serious damage. According to my county investigation, most of vegetables such as: melons, beans, solanaceous vegetables, leafy vegetables and so have viral diseases, but all year round virus disease. Generally in summer, autumn encounter high temperature and drought weather, aphids or low water, lack of fertilizer in the case of soil disease is more serious. Vegetable virus disease mainly rely on aphids and agricultural operations juice poisoning, some?