The ground tiger is the main pest in the nursery. The occurrence of the ground tiger is the heaviest for the first generation and is the key to prevention and control. The phototaxis and taste-adjusting characteristics of adult tigers are used to seduce the adult populations from the end of March to early April. Black light lamps and sweet and sour cans are placed in the nursery to trap the first generation of adults, thus reducing the population density of the first generation larvae. . Artificial killing of larvae When the first generation of tiger larvae is seriously endangered, dig pits in the nursery plots, put worms, rotten fruits and other ground tigers to eat on the pits, and check each morning to eliminate the trapped larvae. Chemical control 1. Kill 2.000-fold liquid with 2.5% enemy and spray seedlings and surrounding soil in the evening. 2. Use a silkworm (25% cyanogen, octano-emulsion) to dilute the water and spray the seedlings in the evening. Control effectiveness up to 90%. Shenzhen Joyfun Sex Toys Co.,Ltd. , https://www.joyfunsextoys.com