Pest and disease prevention and control method for solanaceous vegetable planting

The invention provides a disease and pest prevention and control method for solanaceous vegetable planting. The prevention and control method comprises the following steps: growing seedlings of solanaceous vegetable seeds, planting the cultivated strong seedlings in a production area in which a greenhouse is closed at high temperature in advance, and sterilizing after seedling recovery; removing weeds around the production area, ploughing and sowing functional landscape plants; after the strong seedlings are planted for one week, yellow insect trapping plates are adopted to monitor insect population density, and then a proper number of yellow and blue insect trapping plates are selected to trap insects; a suspension type ozone generator internally provided with a circulating fan is installed in the production area; the method comprises the following steps: boiling or soaking spicy pepper, soap cut into blocks and clear water according to a ratio, filtering out clear liquid, cooling, and directly spraying; nat