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无公害蔬菜生产中的合理用药原则是:①针对不同的防治对象,选择合适的农药,避免滥用药、乱用药。做到对症下药。②加强对病虫发生的预测预报,选择合理的施药时间。③选择合适的施药方法。④农药的合理混配和轮流使用。⑤掌握施药剂量,提高施药质量。⑥使用农药要结合其他有关的防治方法才能收到较好的防治效果,尤其是化学防治和农业防治方法的结合往往可起到事半功倍的效果无公害蔬菜生产中的常用农药品种简介如下: 1、生物农药
The principle of rational drug use in pollution-free vegetable production is as follows: (1) Choose appropriate pesticides according to different control targets to avoid indiscriminate drug use and indiscriminate drug use. Do the right medicine. ② strengthen the forecast of pests and diseases, choose a reasonable application time. ③ choose the appropriate method of application. ④ a reasonable mix of pesticides and take turns to use. ⑤ master the dose, improve the quality of application. ⑥ The use of pesticides should be combined with other related control methods to receive better control effects, especially the combination of chemical control and agricultural control methods can often play a multiplier effect. Commonly used pesticide varieties in the production of pollution-free vegetables are as follows: 1, Biological pesticides