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2. In the early stage of wildfire disease and angular spot disease, spray with 200 units of streptomycin, or use 20% Chuanhua 081, spray 100g to 40kg per acre, spray once every 7 to 10 days. , continuous spraying 2 to 3 times.
Third, powdery mildew in the initial stage of powdery mildew, 25% powder embroidered per acre and 30 grams of water 50-75 kg spray; 70% methyl thiophanate 1200 times solution, 50% carbendazim 1000 times Spraying pesticides such as liquid or 50% antibacterial 400-600 times liquid.
4. For mites, use 40% dimethoate emulsifiable concentrate 1000 times solution, 80% phosphamide emulsifiable concentrate 3000 times solution; 50% anti-Pu Wei or wet powder 5000 times solution, spray 50-70 kilograms per acre with uniform spray; 10 kg of hemp stems, chopped like mud, add 20 ~ 30 kg of water, soak for two hours, filter and take liquid, evenly spray 40 ~ 50 kg per acre, the effect of treatment of cockroach is better, for the majority of farmers to try.
I. Mosaic disease If mosaic diseased plants appear in the seedling stage and the field stage, the quick-acting fertilizer should be applied in time, and cultivating or watering can alleviate the disease, promote the growth of the posterior leaves, and reduce the occurrence of mosaic disease. Or spray with 0.1% zinc sulphate solution for 15 days at intervals of 2 to 3 times. In the seedling stage, the diseased seedlings should be eliminated and new seedlings should be transplanted.
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