灭幼脲,即抗蜕皮激素,是70年代国外在冲破“农药公害”的困扰中发展起来的一种新型害虫发育抑制剂,它对害虫真皮细胞中几丁合成酶起抑制作用,使新内表皮几丁蛋白复合物不能正常形成,旧表皮蜕除受阻,新表皮幼嫩透明且失去弹性而易破裂。由于它作用于节肢动物所特有的蜕皮和变态系统,因而有高度的特异性,且用量少、效果高,对人畜安全, Chlorbenzuron, an anti-ecdysteroid, is a novel inhibitor of pest development developed in the mid-1970s when it broke through the “pesticide pollution”. It inhibits chitin synthase in pest dermis cells, Epidermis chitin complex can not be formed normally, the old epidermis shedding blocked, the new epidermal tender and transparent and lose flexibility and easy to rupture. Because of its role in the arthropod peculiar molting and metamorphosis system, which has a high degree of specificity, and with less, high effect on human and animal safety,