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由于化学农药在生产上大量施用,特别是连续多次和多年施用同一种农药,造成病虫害产生抗药性。实践证明,只要合理施用农药,就能延缓或推迟抗药性的产生和发展。 综合防治,减少化学防治次数。 改善农业生态环境,保护利用天敌生物;加强虫情预测预报,适时防治;把农业技术措施、化学防治和生物防治有机结合起来,改变单纯的依赖化学农药防治的作法 轮换用药 不要长时间施用单一品种的药剂,以切断生物种群中
Due to the large amount of chemical pesticides used in the production, especially the pesticides applied continuously for many times and for many years, the pests produce resistance. Practice has proved that as long as the rational use of pesticides, can delay or delay the emergence and development of drug resistance. Comprehensive prevention and control, reducing the number of chemical control. Improve the ecological environment of agriculture and protect and utilize natural enemy organisms; strengthen the prediction and forecast of insects and timely prevention and control; organically combine agricultural technical measures, chemical prevention and control with biological control and change the practice of simply relying on the prevention and control of chemical pesticides. Do not use single species for long time The agent to cut off the biological population