Guolai vegetables mainly include cucumbers, tomatoes and eggplants. Focus on the occurrence of the more common cucumber gray mold, sclerotinia disease and tomato gray mold, Sclerotinia disease. Cucumber gray mold is a fungal disease. The main hazards are flowers and fruits. The pathogens invade from the open and invading flowers, invading the petal and umbilicus, causing the water to infiltrate and rot, and grow a light brown layer of mold. The decaying material falls on the stems and leaves, causing rot. In severe cases, the lower stem sections are rotted and broken. The plant died. The pathogenic bacteria in the form of hyphae or sclerotia attach to the sick and remains in the soil for winter. Conidia spread with air flow, rain, and agricultural operations. The development of this disease is suitable for temperature 23°C, minimum 2°C, maximum 31°C and high temperature conditions. In the spring and autumn days, the temperature is not high and the incidence is heavy. Charging public hazard prevention and prevention measures: 1. Strengthen management, ventilate and disperse dampness, properly control watering, remove diseased fruits, diseased leaves, and diseased flowers in time. 2, in the early stage of pain, spraying 50% Suo Ke Ling WP 2000 times, or pulchagine WP 1500 times, 50% Ke Yao Ling WP 800-1000 che, each spray per acre For good medicine 60-65 kilograms, once every 7-10 days, need to control 3-4 times. Pay attention to protect the fruit when spraying. In case of rain, make up the spray.
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