What are the control methods for sweet potato skin splitting
The diseases that cause sweet potato skin splitting include blank blister disease and nematode disease. Control measures: 1. Select resistant improved varieties. 2. Establish disease-free seed production fields and cultivate disease-free strong seedlings. Disinfect seed potatoes by soaking them in warm water at 50°C-54°C for 10 minutes. 3. Carry out soil disinfection. Use 1.5 kg of 80% dibromochloropropane per mu mixed with 100-150 kg of water to prepare a medicinal solution, or use 2.5 kg of 70% ethylene dibromide mixed with 200-300 kg of water to prepare a medicinal solution, apply the pesticide in furrows 20 days before planting and immediately cover with soil and form ridges. 4. Rotate crops. Rotation with peanuts gives better results and can be done for one year. Rotation with corn (2349, 8.00, 0.34%) and sesame requires a longer time, preferably 2-3 years.
The diseases that cause sweet potato skin splitting include blank blister disease and nematode disease. Control measures: 1. Select resistant improved varieties. 2. Establish disease-free seed production fields and cultivate disease-free strong seedlings. Disinfect seed potatoes by soaking them in warm water at 50°C-54°C for 10 minutes. 3. Carry out soil disinfection. Use 1.5 kg of 80% dibromochloropropane per mu mixed with 100-150 kg of water to prepare a medicinal solution, or use 2.5 kg of 70% ethylene dibromide mixed with 200-300 kg of water to prepare a medicinal solution, apply the pesticide in furrows 20 days before planting and immediately cover with soil and form ridges. 4. Rotate crops. Rotation with peanuts gives better results and can be done for one year. Rotation with corn (2349, 8.00, 0.34%) and sesame requires a longer time, preferably 2-3 years.