氟虫脲又名卡死克,为酰基脲类广谱杀虫、杀螨剂,具有触杀和胃毒作用,它主要通过昆虫摄入表现生物活性。其作用机理是通过阻止昆虫变态或蜕皮过程的正常发育达到杀虫杀螨的目的。在蜕皮期间,幼虫消化表皮内层,形成新表皮层。在氟虫 Flufferfume, also known as card dead grams, acylurea broad-spectrum insecticide, acaricide, with contact and stomach poisoning, it mainly through the intake of insects to show biological activity. Its mechanism of action is through the prevention of insect metamorphosis or molting process to achieve the normal development of the purpose of insecticidal miticidal action. During molting, the larva digests the inner layer of the epidermis to form a new epidermis. In the flu worm