What method can prevent the rotten fruit of tomato in autumn

What method can prevent autumn tomato rotten fruit? Please guide the rotten fruit caused by cotton rot. First of all, there are smooth light brown spots on the top or shoulder of the fruit, sometimes with a small amount of white mold, and then gradually form concentric wheel-shaped spots, gradually become dark brown, the flesh under the skin also turns brown, and the whole fruit rotates and falls off in the later stage. Control measures: timely removal of diseased fruit, take out of the field for treatment; pay attention to pruning, improve field ventilation and light transmission conditions; at the initial stage of the disease, spray 25% Ruidu 800 times liquid, 75% chlorothalonil 600 times 800 times solution every 7 to 10 days, spray 3 times 4 times. Rotten fruit caused by soft rot. Soft rot mostly occurs on the green fruit, the peel remains intact after the disease, but the internal pulp decays quickly, and has a foul smell, which is easy to fall off; the white fruit is formed after drying. Prevention and control measures: pruning and branching early to avoid overcast and rainy weather or before dew drying; timely control of fruit pests and reduce insect injury; timely use of 150~200ppm agricultural streptomycin solution and 200~400ppm agricultural chloramphenicol solution spray before or at the initial stage of the disease. The rotten fruit anthracnose caused by anthracnose mainly harms the immature fruit. At the initial stage of the disease, the disease looks like a transparent spot, which is brown after expansion, slightly sunken, with concentric lines, dense black spots on it, and secretes a reddish sticky substance. Finally, the whole diseased fruit rotted or fell off. Prevention and control measures: timely harvest of healthy fruit, timely removal of diseased fruit; before or at the initial stage of the disease, spray control with 70% mancozeb 400 × 600 times solution and 75% chlorothalonil 600 times solution. Fusarium rot caused by Fusarium fruit rot is mainly harmful to mature fruit, the diseased part is light at first, then brown, no obvious edge, spread throughout the whole fruit; control countermeasures: timely removal of diseased fruit, and centralized treatment; prevent healthy fruit from contact with the ground; spray 50%DT500 solution before fruit coloring. Rhizoctonia sclerotiorum fruit rot caused by Rhizoctonia sclerotiorum fruit rot is only harmful to ripe fruit, the disease shows light water stains at first, then expands into dark slightly sunken patches, brown arachnoid mildew layer is produced on the surface, and the center of the disease spot is cracked in the later stage, and the fruit is rotten. Prevention and control measures: timely drainage after rain to prevent stagnant water in the field; timely harvest after fruit ripening; spraying 1500 times of Jinggangmycin before or at the initial stage of the disease. Click to get more tomato planting techniques click to get more vegetable planting techniques