How to prevent and cure tobacco black shank disease?

How to prevent and cure tobacco black shank disease? Methods the control strategy of tobacco black shank should be based on the use of disease-resistant varieties, strengthening cultivation management as the center, supplemented by chemical control. 1. Zhongyan 90, Xujin 1, K346, K394, NC82, NC89, G28, G80, K326 and so on are relatively resistant, which can be selected properly. 2. Strengthening cultivation management and rational crop rotation is one of the more effective control measures. Gramineae or sweet potato is better for rotation crops. And promote ultra-high ridge cultivation, ridge height 30-40cm, so that the ground water does not contact with the base of the stem, reducing the chance of bacterial infection. Timely early seedling raising and early transplanting can avoid the rainy season and reduce the harm. 3. Before transplanting, 25% metalaxyl can also be sprayed to achieve transplanting with medicine. After the tobacco plant is cultivated, the following fungicides can be sprayed to the base of the stem at the initial stage of the disease: 58% Redomir-manganese zinc, 72.2% Prik, 72% Sailu, 64% poisonous alum, 40% nail cream copper, etc., sprayed once every 10-15 days, 2-3 times in a row. Click to get more tobacco planting techniques click to get more flower planting techniques