To give full play to the effect of pesticide rust preservation, the northern winter wheat area must pay close attention to two critical periods of pre- and early-spring seedling prevention and control and adult planting. High-yield varieties, early-seeding wheat and late-seeding crops have high yield levels. The wheat field focuses on the prevention and control of the disease, taking the method of drug investigation, discovering one point and controlling one. At present, the main agent for large-area applications is triadimefon, which contains 15% or 25% of wettable powder, 20% of EC, 20% of suspension, and 4 to 12 grams of mu, which is determined according to the sensitivity of wheat varieties. Quantity, add 50 to 75 liters of water. In the jointing stage, the disease is obviously visible, or from the ear to the heading stage, when the diseased leaf rate is 5% to 10%, the spraying is performed once; if the condition is heavy, the duration is long, and once in 15 days, it can be applied again. In addition, 12.5% ​​diniconazole WP, 15% triadimenol wettable powder, 2-6 grams of original drug; 20% propiconazole EC, 25% KE cream EC, 25% methicillin EC, 5 % Diniconazole microemulsion and 20% Phytonine EC, 8 to 15 milliliters of raw medicine with mu, spray disease prevention effects are better, can be selected according to the source of the drug.
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