1. Insect pests (1) Tomatoes, peppers: There are cotton bollworms, tobacco budworms. (2) Eggplant: potato ladybugs, leafhoppers, side-dwellers, etc. (3) Cucumbers: mainly melons. (4) Legumes and vegetables: Beet armyworm, Liriomyza sativae, Leguminosae, etc. 2, prevention and treatment (1) bean wild rice dumplings: First, clear the field of falling flowers, falling leaves, remove the wound leaf and soybean meal, reduce the source of insects. The second is black light trapping adult. The third is chemical control: the first application of the bean in the initial flowering period, and the second application in the flowering period. At 8 o'clock in the morning, petal was sprayed when the petals were open. The focus was on spraying buds, flowers, tender flowers and flowers on the floor. The Bt emulsion can be mixed with 2.5% deltamethrin EC 1 :0.1 800-1500 times spray. (2) Spodoptera exigua: The control period is 1 to 2 instar larvae. The use of agents 50% phoxim EC 500 - 800 times spray, 40% methyl phoxim EC 800 times spray and so on. (3) Liriomyza sativae: Yellow plate trapping. Stick the flyboard to a plywood coated with yellow paint, or apply oil to the yellow paint plate and place it horizontally on the top of the crop, 30 to 50 pieces per mu to trap and kill the adult.