Bacterial wilt is the main disease of tomato, eggplant, pepper, potato and other solanaceous vegetables. It can damage the tissue's tissue, causing it to lose its ability to transport water and nutrients. The main symptoms are rapid wilting and dead plants, and the stems and leaves remain green. The browned parts of the diseased stems were squeezed by hand and milky white bacteria were discharged. The disease is prone to occur under conditions of high temperature and high humidity, repeated cropping, continuous cropping, soil moisture, soil acidity, and partial nitrogen fertilizer. At present, it is a time for the production of pepper and other solanaceous vegetable breeding seasons, and comprehensive measures should be taken to prevent and control bacterial wilt. Spraying trace fertilizer on micro-fertilizer can promote the growth and development of vascular bundles and increase the plant's resistance to disease. From the beginning of flowering, each multi-element mixed type high-efficiency boron fertilizer 100 grams water 40 kg spray, or with 0.1% to 0.2% of boric acid, manganese sulfate mixture of 50 kg to 60 kg spray, every 10 days to 20 One day spray, spray a total of 2 to 3 times. In order to avoid the increase of acidity in the plant, 0.5% sodium bicarbonate solution can be sprayed once or twice during the interval between spraying of boron and manganese fertilizer. For the prevention and control of the cultivation of potatoes, disease-free seed potatoes should be used, soaked in 200-fold formaldehyde solution for 1.5 to 2 hours, and then rinsed with clean water and sowed. When the seed potato is cut, the knife is sterilized with 75% alcohol. Before planting the solanaceous vegetables or harvesting them, 20% of soil bacteria are used per acre to kill wettable powders of 1000g to 2,000g of wet fine ground soil per acre, mixed in the topsoil layer, which can effectively kill pathogens in the soil. At the early stage of disease, spray the plant with 50 kg to 60 kg of streptomycin for agricultural use per acre, spray once every 7 days to 10 days, and spray a total of 2 times to 3 times. Can also be in the occurrence of bacterial wilt, with 20% of soil bacteria to kill the wettable powder 700 times ~ 800 times liquid irrigate or spray, spray every 7 days to 10 days, a total of 2 times to spray 3 times.
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