How to control diseases and insect pests by planting summer corn?

How to control diseases and insect pests by planting summer corn? Please introduce the method of summer corn planting can refer to the following methods to control diseases and insect pests: first, seed treatment every 100 kg of seeds with 100 ml of gold + bright ear (or Li Kexiu) 100ml + 170ml of handsome seedlings for seed coating. It can control maize seedling diseases, underground pests and head smut, such as seedling blight, root rot, stem rot and so on. 2. Prevention and control of insect pests at seedling stage if the pests of armyworm, cotton bollworm and meadow borer occur at seedling stage, they should be sprayed with 3000-fold solution of Jinbiao or organophosphorus insecticides before the 3rd instar. Third, chemical weeding ① soil closure: after sowing, corn was treated with 96% Jindu 70 MUE 80 ml per mu plus 90% Gesaline 100 MUE 130 g or 40% atrazine 150 MUE 200 ml per mu. ②: after sowing, some weeds have been unearthed before seedling, and soil sealing agent can be mixed with gram without trace (100ml / mu) before maize emergence. Early stem and leaf treatment after ③ seedling: after maize emergence, when broad-leaved grass 2Mel 4 leaves and Gramineae grass 3 leaves, 55% Gengjie 100ml 120ml per mu was foliar sprayed. ④ inter-row weeding: after the 6-leaf stage of corn, if there are still weeds in the field, you can use 150ml / mu of traceless 150ml / mu for directional spraying. 4. Diseases and insect pests in the middle and later stage 1. Corn borer: ① physical control method: high pressure mercury lamp was set up near the village to trap and kill. ② biological control method: use Trichogramma or sex attractant for control. ③ chemical control method: use phoxim poisonous soil (0.5kg phoxim EC, 40kg poisonous soil, 3-3.5kg per mu) (or BT emulsion 200ml per mu, add a small amount of water mixed with fine sand 5-7.5kg) into corn heart leaves during the corn trumpet period, or use Jinbiao 3000 times solution (or 1000 times liquid) for foliar spraying. 2. Large and small spot disease: foliar spray of 75% daconine 600 times solution was used to prevent the disease, once every 10 days, a total of 2 times was sprayed 3 times; in the initial stage of the disease, 3000 times liquid was sprayed on the leaf surface, every 10 times every 15 days, a total of 2 times 3 times. Click to get more corn planting techniques click to get more food crop planting techniques