There are many kinds of diseases, pests and rats in winter wheat in our county, which are of great variation and serious harm. Some pests and diseases cannot be controlled during the growing period of wheat. Therefore, doing a good job in preventing and controlling diseases, pests and rats in the sowing period is an important measure to ensure the high yield and quality of winter wheat. 1, disease. Mainly rust, powdery mildew, yellow dwarf disease; followed by full-blown disease, leaf blight, smut and so on. 1.1 Based on local conditions, select resistant varieties such as Lantian No. 13, Lantian No. 14, Xianlong No. 5, and Zhongliang series. 1.2 To improve the cultivation techniques and improve the disease resistance of winter wheat, the most commonly used methods are intensive cultivation, rotation cultivation, reasonable close planting, addition of adequately decomposed organic fertilizers, and cultivation of wheat film. In recent years, proper late planting is also crucial. Under conditions that do not affect the yield of winter wheat, timely late planting in the mountainous areas can control the occurrence of diseases and reduce the spread of diseases; timely timely sowing in the Sichuan area can reduce external diseases and control the source of overwintering. Quantity, to avoid or postpone the occurrence of late spring, can greatly reduce its harm. 1.3 Try to use coated seeds or dressings. 1.3.1 Use 15% triadimefon 100g or 25% triadimefon wettable powder 60g dry mixed wheat seed 50kg, not only can prevent wheat stripe rust, powdery mildew, but also to full-bleeding, leaf blight, black ear The disease has a good preventive effect. 1.3.2 The use of 70% thiophanate-methyl wettable powder 50 grams of dry mixed wheat seeds 50 kilograms can prevent a variety of wheat diseases. 2, pests. Mainly locusts, red spiders, midges, underground pests, etc. 2.1 Intensive cultivation, deep plowing, and the use of mechanical forces to kill and injure part of the body; reduce the population density before overwintering. 2.2 Protect natural enemies. Such as ladybugs, flies, grasshoppers, etc., which have a large number of predation, high parasitic rate, have a clear role in the control of aphids. 2.3 Drug Control. 2.3.1 Soil treatment with 40% methylisoprenic acid granules is effective against underground pests. 2.3.2 Seed dressing with 0.20%-0.30% seed weight of 40% methylisophosphorus can be used to control cockroaches and golden needleworm; with 0.20%--0.30% of 50% phoxim or 1605 seed dressing, can be controlled Tigers, earthworms, cockroaches, golden needleworms, and wheat spiders, etc., maintain the seedling rate of wheat seedlings above 95%. 2.3.3 Seed dressing with 75% Phosphorus with a seed weight of 0.20%--0.30% can prevent and control underground pests, as well as local tigers, wheat aphids and yellow dwarf diseases. 3, rat damage. The important thing is Chinese sturgeon. The arid semi-mountain area below 1700 meters above sea level is the heaviest, the rat rate is more than 60%, and the rate of destroying holes is about 40%. 3.1 Deep-rooted changes in soil and damage to their living environment. 3.2 Using ammonium bicarbonate as a base fertilizer will deteriorate the living environment. 3.3 The onions, scallions, garlic sprouts, artichokes and other foods will be crushed, mixed with 50% zinc phosphide, made of baits, prevention and control of the mole effect. 3.4 Use 75% Phosphate and 1605 Seed Dressing to repellent moles and prevent underground pests.
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