The first step: to grasp the characteristics of wheat pests and diseases. The types of pests and diseases that occur at different stages of wheat development are different: The main hazards of fall seedlings in autumn are the underground pests (cockroaches, cockroaches, and golden needles), wheat field weeds, and some plots of wheat clumps dwarf disease, yellow dwarf disease, and wheat grain. The occurrence of the disease is relatively heavy; in the jointing stage of rejuvenation, wheat sheath blight, powdery mildew, full-bleeding disease and other wheat diseases, wheat spiders, underground pests, and weeds are in high danger; Mashworm, powdery mildew, rust, leaf blight, head blight, and blight disease, etc.
The second step: master the control strategy. Adopting the principle of prevention as the mainstay and comprehensive prevention and control, the overall starting point of farmland ecology is to focus on the conservation and utilization of beneficial organisms in wheat fields, and the coordinated use of biological, agricultural, artificial, and physical measures, supplemented by high-efficiency, low-toxic, low-residue chemical pesticides. Integrated pest management is carried out to minimize the use of pesticides and avoid the pollution of wheat pesticides. Pesticide spraying must be carried out in a weather free of wind and rain.
The third step: specific prevention and control measures. Autumn seedling autumn seedling stage is the initial stage of comprehensive pest control of wheat, and it is also a critical period. It should be mainly controlled by agricultural ecology, with underground pests, root diseases, and weeds as the key points for prevention and control. Prevention and control lay a good foundation for next year's wheat harvest. The turnaround stage of wheat is the period when multiple pests and diseases are mixed and concentrated. Back to the green joint stage is wheat, the sheath blight, full-blown disease, powdery mildew and other diseases and wheat spiders, wheat maggots and other insect pests. Disease prevention and control can be used 12.5% ​​wolfberry fruit or Zhixin Xing 15-20 grams per mu spray control of 50 kg of water, spray once every 10 to 15 days; control of wheat spiders and wheat aphids can be used 10% imidacloprid, konjac 1000 times or 0.9% Insecticide 3000 times spray control. The spike period is another important period for the mixture of various diseases and pests in wheat. It is also necessary to apply a variety of pest control techniques to prevent and cure mixed pests. The panicle stage is a concentrated occurrence period of wheat bran, midge, powdery mildew, rust, leaf blight, head blight, and blight. Therefore, with the main pest as the target, a combination of pesticides and fungicides can be used to treat multiple pests at the same time. This saves time and saves time. Control of wheat aphid can be used 10 to 15 grams of imidacloprid or acetamiprid 30 grams of spray control; control powdery mildew, rust, scab disease can be used 12.5% ​​wolfberry fruit or Shi Xin Xing 15 to 20 grams per acre spray control. Special emphasis should be placed on the scientific application of mixed application techniques based on the control targets and prevention and control indicators. Single insects should be severely weighed and others should be treated lightly to prevent waste and pesticide contamination. In the event of a flood season in the heading stage, spraying of wheat must be followed by spraying to prevent wheat head blight and sage blight.
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