In field chemical prevention and control test of A. muratae, effect of re- moving tertia coating method was the fastest in five pesticide application methods, and preventive effect of burying pesticide method at the root was significantly im- proved after 14 days. Corrected death rates of the two methods were both above 70%, and corrected death rate of burying pesticide method at the root reached 100% after using pesticide secondly for 7 days. For different pesticide tests, pre- vention and control effect of matrine water aqua stoste, matrine water aqua 10 times liquid and imidacloprid wet powder 10 times liquid coating was the best, and burying pesticide method at the root and pesticide liquid irrigating root method had the best prevention and control effect when respectively used imidacloprid wet pow- der and dimethoate missible oil. It was suggested to use 40-60 g/plant of imidaclo- pdd wet powder at the root during occurrence period of nymphae, which had simple operation and good effect.
