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随着化学农药在生产上的大量使用,特别是连续多次和多年施用同一种农药,就会使病虫产生抗药性。实践证明,只需合理的施用农药,就能延缓或克服抗药性的产生和发展。轮换用药。不要长时间施用同一品种的药剂,以切断生物种群中抗性种群的形成过程,轮换施用的品种应尽可能选用作用机制不同的农药。如杀虫剂有机磷制剂,拟除虫菊酯类制剂、氨基甲酸酯制剂、有机氮制剂、生
With the extensive use of chemical pesticides in production, especially for many times and many years of application of the same pesticide, it will make pests and insects resistant. Practice has proved that only reasonable application of pesticides, can delay or overcome the emergence and development of drug resistance. Rotation medication. Do not apply the same species of medicament for a long time to cut off the formation of resistant populations in biological populations. Whenever possible, the pesticides with different mechanisms of action should be selected for rotation. Such as pesticide organophosphorus preparations, pyrethroid preparations, carbamate preparations, organic nitrogen preparations, raw