Introduction to the symptoms and control methods of pepper blight

Control methods: 1. Pepper blight is mainly harmful to leaves, fruits and stems, especially at the base of stems. 2. The disease occurs in the seedling stage, mostly from the base of the stem, the disease part appears watery soft rot, the disease spot is dark green, and lodging above the disease part. Control methods: 1. Implement rotation, deep ploughing and soil improvement, combined with deep ploughing, increase the application of organic fertilizer, phosphorus and potassium fertilizer and micro-fertilizer, and apply appropriate amount of nitrogen fertilizer to improve soil structure. 2. Select disease-resistant varieties and seeds to strictly disinfect and cultivate sterile strong seedlings; 7 days before planting and on the same day, carefully spray the germicidal protective agent twice to clean the seedlings into the house and reduce the occurrence of diseases. 3, pay attention to observation, found a small number of diseased leaves and fruits, immediately removed the deep buried, found that the stem disease, immediately with 70% mancozeb 200 times solution to smear the disease spot, root out the pathogen. 4. Chemical control: soil disinfection should be done well before planting, combined with ploughing, spraying chlorpromazine, diproxone, metalaxyl and other agents to kill residual bacteria in the soil. If the disease has occurred, it should be sprayed with Anke, Fushuade and other medicine. it can also be sprayed with potassium dihydrogen phosphate and green leaf protection to improve the disease resistance of the plant itself.