Grasshoppers are mainly larvae and their control methods are as follows: 1 Implement autumn deep-seated winter irrigation, fine soil preparation, and reduce the population density of overwintering larvae in the field. 2 Remove weeds and reduce the amount of eggs that fall from the field 3 Install frequency-type insecticidal lamp or black light lamp to seduce grasshopper adult. 4 Chemical control: Before the grasshopper is 2 to 3 years old, it should be sprayed with Bt WP 500-700 times or 25% diflubenzuron 1500-2000 times. When the amount is large, 4.5% high efficiency cypermethrin 1500-2000 times or 2.5% cyfluthrin EC may be sprayed 2000-2500 times. Adhesive Nano Tape,Removable Gel Grip Tape,Nano Adhesive Grip Tape,Traceless Washable Tape Kunshan Jieyudeng Intelligent Technology Co., Ltd. , https://www.yuhuanptapes.com