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要正确合理使用农药,首先要了解农药、作物、病虫、杂草的特性和它们的相互关系,掌握好施药方法。为做到适时用药,适量用药,区分不同的病、虫、杂草和作物用药,以达到防效好,低成本,对作物不发生药害,使害虫、病菌不产生抗药性,对人畜和天敌安全,保护作物稳产高产的目的,必须注意做到以下几点: 1.对症下药各种农药都有自己的性能
To correctly and reasonably use pesticides, we must first understand the characteristics of pesticides, crops, pests, weeds and their mutual relations, master the application method. In order to achieve timely drug use, appropriate medication, different diseases, insects, weeds and crop medication, in order to achieve good control effect, low cost, crop injury does not occur so that pests, bacteria do not produce resistance to human and animal husbandry and Natural enemies of safety, the purpose of protecting crops stable and high yield, must pay attention to the following points: 1. The right medicine Various pesticides have their own performance