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我们在使用农药防治病虫害或杂草时,必须考虑农药对防治对象的效果、农药的成本和人畜及作物的安全,也就是说要经济、有效、安全地使用农药。但有些地方,为了控制某种病虫(特别是暴发性病虫)或某种恶性杂草的危害,竟随意提高药液浓度和增加每亩用药量,而忽视了经济、安全问题,结果往往造成严重后果;也有些地方,由于施药人员不熟悉农药性能,对某些农药产生畏惧心理,就随意降低药液浓度和减少每亩用药量,结果因防治效果不佳而给生产上带来损失。因此,我们在使用农药时,必须经济、有效、安全三者兼顾,既要充分发挥农
When we use pesticides to control pests or weeds, we must consider the effect of pesticides on the controlled objects, the cost of pesticides and the safety of people, animals and crops. In other words, pesticides should be used economically, effectively and safely. However, in some places, in order to control the harm of some pests (especially fulminant pests) or some kind of malignant weeds, we should arbitrarily increase the concentration of medicinal solution and increase the dosage of medicinal plants per acre, neglecting the economic and security problems and the result is often In some places, because pesticide applicators are not familiar with the performance of pesticides and are afraid of certain pesticides, they arbitrarily reduce the concentration of medicinal solution and reduce the dosage of pesticide per mu. As a result, the production is brought by the poor control effect loss. Therefore, when we use pesticides, we must combine economic, effective and safety measures so that we must give full play to farming