除虫脲为苯甲酸基苯基脲类除虫剂,与灭幼脲三号为同类除虫剂,杀虫机理也是通过抑制昆虫的几丁质合成酶的合成,从而抑制幼虫、卵、蛹表皮几丁质的合成,使昆虫不能正常蜕皮虫体畸形而死亡。该品种是对人畜低毒,对天敌安全的昆虫几丁质合成抑制剂。随着除虫脲制剂长期使用后,害虫对其的抗性逐年加大,使农药用量不断增加,导致用量增大、残留增加、药效差等不良后果。且使用单一组分 The diflubenzuron is a benzoic acid phenylurea insecticide, which is the same kind of insecticide as the chlorbenzuron 3. The insecticidal mechanism also inhibits larvae, eggs and pupae by inhibiting the synthesis of insect chitin synthase Chitin epidermis synthesis, so that insects can not normally molt worm deformity and death. The variety is low toxicity to humans and animals, insects on natural enemies of chitin synthesis inhibitors. With the long-term use of diflubenzuron, the pest to its resistance increased year by year, increasing the amount of pesticides, resulting in increased dosage, increased residues, poor efficacy and other adverse consequences. And use a single component