Pepper planting technology: how to prevent virus disease in autumn pepper?

How to prevent virus disease in autumn chili? Please instruct the diseased leaves to appear irregular chlorosis, dark green and light green mosaic after the onset of pepper virus disease, brown necrotic spots appear on some leaves, dark brown necrotic stripes appear along the stem from the main veins of the leaves, resulting in falling leaves, flowers and fruits, and the whole plant is dead. The leaves are odd-shaped and clump, and the plant is deformed by cucumber mosaic virus infection, which is characterized by thickening, shrinking or showing fern-like leaves and chlorotic veins. Shrinking, uneven and linear, shortening of stem internodes, dwarfing of plants, clustered branches and leaves, diseased fruit showing flower spots or necrotic spots, odd shape and easy shedding have a great impact on the growth of pepper. Prevention and control method of pepper virus disease: pepper seed treatment before sowing: in addition to selecting resistant varieties, soak the seeds in clean water for 3 hours and soak them in 10% trisodium phosphate solution for 20 minutes before sowing. Rinse clean with clean water after fishing out, and then sprout. Strengthen management: cultivate disease-free and strong seedlings, raise seedlings in a single pot of nutritious soil, and plant them with vines and bowls. Increase the application of fully mature organic fertilizer to promote early onset and enhance plant disease resistance. At the same time, do a good job in greenhouse temperature management, in the seedling stage and early planting stage, because of the high temperature and strong light, it is necessary to cover the sunshade net or shade with weeds to avoid direct sunlight. The greenhouse should be ventilated around, especially when the temperature is high at noon, it is necessary to lift the shed for ventilation and adjust the temperature inside the shed. At the time of planting, the diseased plant was removed in time. Chemical control of pepper virus disease: timely control of aphids and cut off the source of virus. When aphids are found to migrate in the field, immediately carry out control, with 10% of great heroes, 10% of aphid lice powder dosage of 10: 15 grams per mu, 30-40 kilograms of water, uniform spray control, if the weather is dry, when the number of aphids is large, continuous spray control. In the initial stage of the disease, spraying 1.5% Zhanling water agent 100 ml per mu or 20% virus A wettable powder 70 grams per mu, spraying once every 5-7 days, 2-3 times in a row, can get better results. If the disease is serious, the leaves are shrunk and the internodes are shortened, 1 mg / kg cytokinin can be added to the above agents, 50 grams per mu to accelerate cell division and reduce the harm. Click to get more chili planting techniques click to get more vegetable planting techniques