1. Proper control. In early May, the appropriate temperature and humidity during wheat filling stage may occur. Farmers should often observe the wheat in their own wheat fields. As long as the selection of drugs is appropriate, proper application of pesticides, the general control of one can control the damage of wheat stubble. The current wheat stubble is mainly harmed on the lower stems and leaves, and some plots have already reached the prevention and control index, and investigation and prevention should be stepped up.
2. Rational selection of drugs. Generally used in the early stages of aphid development with 3% acetamiprid EC 60ml, or 10% nitenpyrazole 15-20 mL, or 50% WP WP 20-30 g, or 10% imidacloprid 25-30g wettable powder, or 3.6% octyl chlorocyano cyanide EC 80ml, or 20% chlorinated chlorphetone EC 40-60ml, 20% cyanomethoxine EC in the middle and later stages of locust occurrence 68-80 ml of organophosphorus pesticides and pyrethroid pesticides were formulated for spray control.
3. Apply the medicine correctly. When spraying, choose morning dew to dry before 10 o'clock, or after 4 o'clock in the afternoon, it is advisable to use windless weather to spray evenly, penetrate the upper and lower sides, and apply medicine to wheat ears and leaves. The key to smoothing is to increase the amount of liquid used. The specific requirements should be based on the density of the corn field. Use a hand sprayer to apply 40-50 kg of liquid per mu, and use an electric backpack sprayer to spray the liquid per mu. Less than 40 kilograms, to avoid the wrong way of adding a sprayer water to an acre of ground wheat aphids, the amount of liquid must not be less than 30 kilograms; use liquid mist sprayer to apply liquid amount of not less than 20 kilograms to ensure Control effect.
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