关于应用灭幼脲类药剂的几个问题刘志坚（山东省烟台市果树科学研究所２６４００４几年来，用灭幼脲３号、杀铃脲防治暴发成灾的金纹细蛾，收到了理想效果。现在脲类药剂已在全国２７个省市推广应用，并出口朝鲜等周边国家。由于它药效好、无残毒、持效期长，对人、畜、鸟... Several problems on the application of diflubenzuron-based pharmaceuticals Liu Zhijian (Institute of Fruit Science, Yantai 264004, Shandong Province, China) For the past few years, the use of diflubenzuron 3 and trifolficin to control outbreaks of golden buds has received satisfactory results. Now urea agents have been applied in 27 provinces and cities all over the country and exported to neighboring countries such as North Korea. Because of its good efficacy, no residual drug, long lasting effect on people, livestock, birds ...