Prevention and control methods ① Combined with pruning and shaping, timely cut off the branches that gnawed into larvae that year to prevent the larvae from gnawing at the trunk. (2) At the peak of adult emergence, the adult was captured artificially. (3) In the larval stage, a metal wire is used to pierce the bottom hole of each wormhole to kill the larvae. (4) When the larvae are active, look for fresh wormholes, dig out dung scraps, then inject 80% dichlorvos emulsifiable concentrate 100 times into the wormholes with a syringe, and then seal the injection port with soil, or insert a zinc phosphide poison stick into the wormholes to kill insects.