According to different stages of cotton, targeted green prevention and control technologies are implemented, mainly using light trapping + physical and chemical treatments.
1. Before cotton is sown. Choose high-quality insect-resistant cotton varieties. In the demonstration area, all varieties of insect-resistant cotton were planted.
2. Cotton sowing time. Light trapping + drug seed dressing. A black light is installed every 50 mu for the sowing period to seduce and kill underground pests, and then seed dressing with insecticides to prevent plant diseases and insect pests.
3. Cotton seedling stage. Light trapping technology + scientific drug use techniques, such as the use of Helicoverpa armigera nuclear polyhedrosis virus, Bacillus thuringiensis and other biological pesticides and high-efficiency and low toxicity chemical pesticide spraying pest control.
4. Cotton result period. Light trapping technology + sexual attraction technology + biological and chemical processing technology. Install cotton bollworm sex attractant, install three branches per acre, trap and kill male adults of lepidoptera such as cotton bollworm, and use biological pesticides and high-efficiency and low-toxicity chemical pesticide spray to control pests and diseases.
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