In recent field investigations, the occurrence of hot pepper disease has been severe and prevention and control should be stepped up. Symptoms: dark green round lesions appear on diseased leaves, the edge is not obvious, when wet, it can appear white moldy, lesions spread rapidly, most of the leaves soft rot, easy to fall off, dry into light brown. Diseased stems appear dark brown strip lesions, the edge is not obvious, above the stripe leaves withered, lesions were brown soft rot, wet spots appeared on the white mold layer. Diseased lesions were water-stained dark green soft rot, the edge is not obvious, when wet, the diseased part of the rapid expansion, the whole fruit soft rot, fruit dense white moldy material, dry light brown, dry. Pepper blight belongs to soil-borne diseases, which are transmitted by wind, rain, irrigation, and other agricultural activities. The temperature range for germination is 10°C-37°C, and the optimum temperature is 20°C-30°C. When the relative humidity of the air reaches above 90%, the onset is rapid; heavy and low-lying land, poor drainage, excessive nitrogen fertilizer application, excessive density, and weak plants all contribute to the occurrence and spread of the disease. July-September is the peak period of the hot pepper disease. Heavy rain and high-temperature irrigation will cause the epidemic to occur rapidly and spread rapidly, causing large areas of pepper to die. Control methods: At the beginning of the disease, 72.2% Prec 800times, 72% Kelu 700-800 times, 70% metalaxyl MnZn 500 times, and 70% Xinwansheng 600 times spray can be used. The above liquids need to be used alternately, sprayed once every 5-7 days, and sprayed 2-3 times continuously. The diseased fruits and diseased leaves are promptly removed and taken out of the fields to be buried or burned to prevent the spread of germs. Dongguan Anmeixuan Electronic Technology Co., Ltd , https://www.hyashine.com
Pay attention to control of pepper disease