Anthracnose fungal disease. Disease-resistant varieties should be selected, and disease-free seeds should be selected, soaked in formalin solution; with 75% chlorothalonil 600 times, or 50% carbendazim 500 times, or 70% mancozeb WP 500 times Liquid spraying plant control.
Fusarium fungal disease. Variety resistant varieties can be used, seed dressing with 0.5% seed weight of 50% carbendazim WP, or 50% carbendazim wettable powder 50 times soaking for 4 hours or 50% carbendazim WP 400 Double fluid, 0.3 to 0.5 liters of irrigation per plant.
Bacterial diseases. Seed-free seeds can be used, soaked in warm soup, or dressed with 50% enemy powder, 0.3% of the dry seed amount.
Root rot fungal disease, damage to main roots and underground stems. The initial stage was reddish-brown patches, which became dark brown afterwards and dehisced. When it was heavy, it wilted and died. When it was wet, it had mildew, mainly through water, agricultural implements and unrefined fertilizer. Can spray 70% thiophanate-methyl wettable powder 1000 times or 50% carbendazim wettable powder 400 times spray control, spray 7 days, a total of 2 or 3 times.
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