Potato bacterial wilt, also known as bacterial wilt, is a serious disease of the potato. In high-temperature, high-humidity, and rainy areas, the incidence is heavy, autumn is more rainy, and autumn potato is more serious. Planted with diseased seed potatoes, continuous cropping, low-lying land, soil acidity, easy to disease. At the early stage of disease, the lower leaves wilted during the day and recovered in the evening. After 2 or 3 days, they did not recover and gradually developed from the bottom to the top. After 4 to 5 days, the diseased plants were wilted and dead. In addition to the establishment of disease-free fields and the selection of disease-free seed potatoes, the control methods should also be: 1. Crop rotation cannot be used in conjunction with crops such as solanaceous plants and peanuts, and has good disease-resistance with rice rotation. 2.Strengthen the management of cultivation. Choose high-lying, well-drained fields for planting; apply more organic fertilizer and increase potassium fertilizer; acidic soil, soak 50-75 kilograms of lime per acre before ploughing to make the soil slightly alkaline and reduce the incidence of disease. . 3. Chemical control found that the diseased plant was immediately removed and burned, and the agent was used to irrigate the roots. The plant was irrigated once every 7 days, and it was even injected 2 to 3 times. Each strain used 0.25 kilograms of liquid and had better preventive effect. The commonly used agents are: 50% of Mulgarizine 700 times, or 800 times of backing, or can kill 1000 times, or 20% lime water. Rongcheng Jingyi Oceanic Technology Company Limited , https://www.jingyifoods.cn