Wheat heading and flowering to grain-filling stage are wheat flour powdery mildew, rust, scab, wheat aphid, midge, wheat arachnid, sand leafhopper, underground pests and other pests intertwined with the occurrence of harm, is also the formation of wheat grain yield The most critical period. This time to promote the "one spray and three defenses" technology can achieve pest control, disease prevention, prevent premature aging, is a key measure to increase wheat grain weight, improve wheat yield, but also wheat in the middle and later period disaster prevention and reduction, stable production and production of the most direct and most simple The most effective measure can achieve a multiplier effect.
“One-spray and three-prevention†technology at the wheat ear stage, that is, at the heading and flowering stage of wheat, reasonable use of insecticides, fungicides, plant growth regulators, or foliar fertilizers to achieve a single application of pesticides, preventing disease, preventing insects, and preventing Premature decline (to prevent dry hot wind, prevent lodging). According to the occurrence of diseases and insect pests at the ear of this year's wheat, wheat smuts and powdery mildew were the main pests, and wheat, spider mites, underground pests, head blight, rust, and other pests and diseases were implemented. The application period is suitable for wheat heading and flowering to grain filling. According to the types and severity of wheat diseases and insect pests in different areas, the right medicine is used to select the appropriate insecticide and bactericide, and the combination of foliar fertilizer with 200 times potassium dihydrogen phosphate and 100 times urea is recommended to achieve pest control, disease prevention, and premature aging prevention. The role. 30-45 kilograms of sprayed acre liquid, and spray evenly and thoughtfully. The spraying time is preferably from 10 a.m. to 4 p.m. in sunny and breezy weather.
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