The main pests and diseases in wheat fields include wheat virus disease, wheat full-bleeding disease, wheat sheath blight, wheat leaf blight, wheat root rot, wheat bran, corn borer, cotton bollworm, and broad-leaved weed. In the prevention and control, the plant protection technology policy of "prevention-oriented, comprehensive prevention and treatment of metallurgy" should be followed, and the prevention of disease should be followed by prevention and treatment, aiming at both ends, aiming at economical, effective and safe purposes. Clean pastoral. In order to prevent the spread of viruses such as wheat bush dwarf, yellow dwarf, mosaic, etc., it is possible to clean up the vector-borne insect flyhoppers and roundworms before and after sowing. Take natural tablets as the unit, regardless of the crop fields, free space, roads, or ditches, weeds should be removed first, and then sprayed once per acre with 80--100 grams of 40% embolic oil or 20 grams of 5% imidacloprid. Fruits, vegetables, and crop security near harvested plots can have the effect of reducing damage to wheat borers. Choose a reasonable sowing method. The use of interplanting methods such as wheat-vegetable interplanting, wheat-peanut interplanting, and rape-growing within the field of wheat is beneficial to the occurrence of natural enemies of pests, increasing the degree of continuous occurrence and annual cycles of various natural pests of farmland, and thus increasing the level of regional ecological control. Fertilizer care. By means of self-fertilization, limited use of chemical fertilizers, and increased use of organic fertilizers and biological fertilizers, it will promote the robustness of wheat seedlings and enhance the resistance to insects. At the same time, it will also promote the proliferation of beneficial microorganisms and inhibit the occurrence of harmful bacteria. Restricted fertilizer, but also to ensure product quality levels. On the basis of formula fertilization, 1.5 kg of zinc sulfate per acre base can increase soil nutrients, and effectively control root diseases such as full-bleeding and sheath blight of wheat. Medicament treatment seeds. Pharmaceutics treatment seeds are effective measures to prevent wheat seed propagation, soil-borne diseases, and underground pests during seedling stage. The use of insecticides to treat seeds can also prevent seedling borer damage. At present, 3% of the fine fungicide used for seed treatment is Difendan, and at 2.5%, the insecticide is 60% of KAP, 40% of methylisophosphorus, and 50% of phoxim, especially in wheat. In the mixed pest area, one kind of fungicide and one kind of insecticide can be used for seed dressing according to 0.2% of seed amount, and ideal results can be obtained. Seedling field control. After wheat emerged, field weeds were excavated, and when the weeds were in the 3- to 4-leaf stage and the body resistance was poor, chemical weeding was performed in a timely manner, which had a good effect of killing the grass and had a small impact on the aftermath. For wheat fields dominated by broad-leaved weeds, 7 grams of giant stars 1 g or 10% of tribenuron-methyl is used per acre, or 10 ml of 5.8% Maixi EC, evenly spraying 40 kg of stems and leaves of water. For cornfields where grassy weeds occur more severely, 6.9% of hummer 60--70 ml spray can be mixed. In the case of seedling emergence in wheat seedlings, 40% dimethoate or other organophosphorus pesticides or 5% imidacloprid 1000-fold spray can be used, and kung fu, speed killing, and other chrysanthemum pesticides 2000--3000 times spray control can be used to ensure wheat Safe growth, but pay attention to environmental pollution and pesticide residues in agricultural products.