Control pests in the middle and late stages of corn growth

The common pests in the middle and late stages of corn growth include aphids, corn borers, armyworms, cotton bollworms, etc., and they should be targeted for prevention and control.
Locust insects per acre with 50% anti fog Weiwei WP 8 ~ 10 grams, or 10% imidacloprid WP 10 ~ 15 grams, add water 45 kg spray control.
Corn glutinous rice corn in the small bell season, per acre with 3% phoxim granules 0.5 kg mixed sand 7.5 kg, after mixing and scattered into the heart, the amount of each plant 1.5 to 2 grams; or Six to eight days after the period, spraying with 4.5% beta cypermethrin EC or Kung Fu 2.5% Lambda-cyhalothrin EC 1500-2000 times spray.
Insecticides were sprayed with 25% diflubenzuron suspension or 4.5% beta-cypermethrin EC 1500-2000 times.
The bollworm was sprayed with 4.5% beta-cypermethrin EC or KF 2.5% Lambda-cyhalothrin EC from 1500-2000 times.