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农作物病虫抗药性是指在农业生产过程中,在很长一段时间内对于某种病虫害反复而单一的采用同一种农药加以防治,导致该药物药效大幅减退,甚至出现药物使用后对病虫无效现象,这就是该种病虫害对这一药物形成的抗药性。在农作物中如果病虫形成抗药性,不仅会导致农药效力大幅衰退,使农业生产成本大幅增加,导致防治效果明显减弱,给农业生产造成巨大损失,同时还会对生态环境造成污染,严重时会给生态平衡造成巨大破坏。因此,必须对农作物病虫抗药性进行有效预防。
Crop pest resistance means that in the process of agricultural production, for a long period of time for a particular pest and disease repeatedly using a single pesticide to be controlled, leading to a substantial decline in the efficacy of the drug, and even after the use of drugs on pests and diseases Invalid phenomenon, this is the kind of pest and disease resistance to the drug. If the pest and disease resistance in crops is formed, it will not only lead to the drastic decline of pesticide efficacy, but also greatly increase the agricultural production cost. As a result, the prevention and control effects will be obviously weakened, causing huge losses to agricultural production. At the same time, it will also cause pollution to the ecological environment. To the ecological balance caused great damage. Therefore, crop pest resistance must be effectively prevented.