What if there are a lot of rotten fruits when the grapes are ripe?

What if there are a lot of rotten fruits when the grapes are ripe? For advice on the prevention and control of rotten grape fruit during ripening period, you can refer to the following methods to prevent and cure rotten grape fruit: 1. Thoroughly remove the disease source before the branches and vines are off the shelf in autumn, and burn the removed remains centrally; spray 50 times of 100 times Solibal before burying the soil in autumn and after being unearthed in spring or add 300 times of pentachlorophenol sodium to reduce the incidence of disease. Remove diseased leaves, fruits and vines in time during the growing season and bury them deeply. 2. Strengthen daily management: timely drainage and loosening of soil after rain; timely binding of vines and coring, keeping ventilation and light in the rack; increasing application of potassium, calcium and trace elements, spraying plant growth regulators (such as Lvfeng 95, must be more harvested, high yield protection, etc.), improve leaf function, enhance tree potential, improve disease resistance, control yield, reasonable burden. The yield is determined according to the growth of the plant, and the yield per mu of adult orchards should be controlled at 2500 kg ~ 3500 kg. 3. Use medicament in advance to prevent: apply pesticide on the ground to eliminate the source of bacteria. For the orchard with serious disease last year, sprinkle lime on the ground before the disease occurs. The soil with high PH value can be sprinkled on the ground: thiram, sulfur powder and lime. Mix the three evenly and sprinkle them on the ground, with a dosage of 1 kg ~ 2 kg per mu. Or spraying 500 × 600 times of Fumishuang under the shelf or 50% carbendazim 500 × 600 times can control the source of primary infection from soil overwintering. Spray protection. Spray 1-0. 5-0. 7-0. 7-200 Bordeaux solution during the growing season. Spray every 10 to 15 days to protect leaves, vines and ears, reduce the chance of infection, and prescribe the right medicine for the disease. In the event of white rot, anthracnose and other diseases, it is necessary to apply pesticides to the symptoms, but pay attention to the alternate use of chemicals, not continuous single use of drugs, fruit coloring in order to prevent pesticides from polluting the ear, can be used 9281 times or 12% green milk copper 600,800 times. Click to get more grape planting techniques click to get more fruit planting techniques