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Fall prevention tomato rotten fruit
Autumn tomatoes are the result of rotten fruit, the cause of which is closely related to the three diseases, and prevention and control should be strengthened. The soft rot disease caused by soft rot is a bacterial disease that mainly affects stems and fruits. When the fruit is onset, the peel is bright, the flesh is rotten and soft, and after the rupture, it emits offensive odor, easily falls off, and turns into a white, stale fruit after drying. Control methods: 72% of agricultural streptomycin sulfate soluble powder 4000 times solution or 70% of dexamethasone 1000 times solution before onset or early onset. Spray once every 8-10 days. The number of sprays depends on the condition of the disease. . Destroyed fruit caused by brown spoilage This disease is a fungal disease. The main hazards are close to mature fruits. They often produce light-brown spots on the fruit's shoulders to the top of the fruit. They become concentric ring stains and become dark brown in the later stages. The surface is not smooth. When softening occurs, the disease minister produces a layer of gray mold. Control methods: When you first see the disease, use 25% of Suicidal Mildew 800-1000 times or 75% of Chlorothalonil 600-800 times, etc., spray once every 7-8 days, and spray 2-3 times. Caused by anthracnose This disease is caused by semi-known bacteria. The pathogens invade the fruit before coloring. After incubation, the disease develops. After the disease develops, a small transparent spot appears. It gradually expands and turns black and slightly sinks. The lesion has a concentric ring pattern. Black spots on the raw, secrete red viscous material in the wet conditions, and finally the fruit rot off. Control methods: In the green fruit period, use 80% anthraquinone omeprazole WP 800 times solution or 50% carbendazim WP 500 times solution, etc., spray once every 8-10 days, and spray twice to suppress disease development of.