梨二叉蚜和桃瘤头蚜分别是梨树、桃树上主要害虫 ,对许多化学药剂产生了较为严重的抗药性 ,药剂防治相当困难 ,寻找无抗性、无公害的有效药剂已成为亟待解决的技术问题。０．８ %苦参碱·内酯水剂系以氧化苦参碱和补骨脂内酯为主要成份的新一代植物源杀虫杀螨剂 ,系高效、低毒? The pear aphid and peach aphid were the main pests on pears and peaches, respectively. They had more serious resistance to many chemicals and the medicaments were quite difficult to control. It was urgent to find effective medicaments without resistance and pollution. Solved the technical problem. 0.8% Matrine Lactone Agent A new generation of plant-based insecticide and miticide with oxymatrine and psoralea lactone as its main components, which is highly efficient and low toxicity.