国产25％灭幼脲Ⅲ号胶悬剂对菜粉蝶具有很强的毒性。用石蜡切片进行的组织病理学观察表明,受药幼虫内表皮和脂肪体出现明显病变。内、外表皮剥离,其间产生颗粒状凝结物;内表皮明显变薄,出现断裂和缺失;脂肪体碎裂,细胞解体以至消失。 Homemade 25% chlorbenzuron No.3 suspension has a strong toxicity to cabbage butterfly. Histopathological observation with paraffin sections showed that there were obvious lesions in the inner epidermis and fat body of the treated larvae. Inside and outside the skin peel, during which produce granular coagulation; endothelium significantly thinning, there is a break and lack of fat fragmentation, cell disintegration and even disappear.