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First, the prevention and treatment of early and late blight
1. Select disease-free seed or seed agent, soak in seeds with 0.1% potassium permanganate for 30 minutes, wash and dry to sow;
2. Rotation with non-solanum plants;
3, strengthen the cultivation and management;
4. Chemical control, using 58% of Remanganese Manganese 1:500, 75% of Chlorothalonil 1:500, 80% of Daisen 1:500, sprayed 2-3 times in the initial stage, with a safety interval of 10 days.
Second, the control of bacterial wilt
1, with cruciferous or grass rotation;
2. Disinfect the soil and treat the soil with 3% Guanghe Ling 1:750 times;
3. Chemical control, at the beginning of the disease, use 72% of streptomycin-sulfuric acid soluble powder 4000 times for continuous irrigation, 2-3 times of continuous irrigation, 50% amafrost 1:500 times, 50% can kill 1:500 times, 5% Bacteria poisonous clear 1:300-500 times spray, safety interval 10-15 days.
Third, virus disease prevention and control technology
1. Choose disease resistant varieties;
2. Rotation;
3, to strengthen the cultivation and management, found that diseased leaves in a timely manner;
4. Chemical control: Use 1:500 times of Ningnanmycin or 5% of virulent bactericidal agent 1:300-500 times of liquid, spray once every 5-7 days, even prevent 2-3 times, safety interval 10 days.
Tomato disease prevention technology
Tomato diseases include early blight, late blight, powdery mildew, gray mold, leaf mold, spot blight, blight, blight, and other fungal diseases; blight, soft rot and other bacterial diseases and virus diseases.