Wheat red dwarf disease and yellow dwarf disease are virus diseases transmitted by leafhoppers and aphids, respectively. The key to the prevention and control of these two diseases is the eradication of transmission media. The best time is to control insecticides in pesticide seed dressing, autumn seedling stage and early spring seedling stage. Drug seed dressing. Winter wheat must be fully dressed before seeding. Choose 60% phorate or 40% methylisotriphoris EC 100 ~ 150 ml, 3 kg of water, spray 50 kg of wheat seeds. Dry or stuffy for more than 12 hours until the seeds are fully absorbed and semi-dry. After being unearthed, wheat is poisonous. It can kill poisonous insects in time, effectively reduce the incidence of disease, and has the effect of promoting the emergence and early growth. The sowing period in autumn should not be too early to avoid the transmission of poisonous insects and become the peak period. Qiu Miao and early spring return to the control of the drug. Autumn seedlings are not seed dressing, or autumn seedlings still need to prevent and control, to be early prevention and treatment of drugs, pharmaceuticals can choose 40% omethoate, 40% water phosphorothiophene, 25% Mitoxim, according to the instructions multiples of water spray. When spraying, we must pay attention to the weeds in the fields and the surrounding area and we must also spray them thoroughly. The prevention and treatment after returning green in the early spring is the same as that for autumn seedlings.
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