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宣化县在张家口农专李文德副教授的指导下,于1988年推广应用人工合成性信息素防治玉米螟技术达5.8万亩,收到了很好的防治效果。据调查,一代玉米螟卵量下降82％,交配抑制率达65.6％,蛀茎减退率为84.8％。试区与对照区相比,亩挽回粮食损失48公斤。亩防治成本0.16元,比用1605颗粒剂防治亩节省开支1.34元。共挽回粮食损失222.7万公斤,经济效益达110万元。
Under the guidance of Associate Professor Li Wende from Zhangjiakou Agricultural College, Xuanhua County promoted the application of synthetic pheromone in preventing and curing corn borer to 58,000 mu in 1988 and received good control effects. According to the survey, a generation of corn borer eggs decreased 82%, mating inhibition rate of 65.6%, stem borer reduction rate was 84.8%. Compared to the trial area and the control area, MU saved 48 kg of grain loss. Mu prevention and control costs 0.16 yuan, than with 1605 granules prevention and control of acres of savings 1.34 yuan. A total of 2,227,000 kilograms of grain losses were recovered, with an economic benefit of 1,100,000 yuan.