When the grapes are bagged, rotten fruit also occurs, the problem is that the bagging technology is not enough. There are mainly the following reasons: 1. The bagging time is wrong. Relatively speaking, bagging should be early and not too early, generally during the fruit expansion period. Even if it is late, some grapes have been infected with germs, and it is difficult to eliminate all the sprays. The germs are still propagating in the bag. According to the experiment, the bagging rate of grapes during the expansion period is only 2.5%, while the bagging rate 20 days later is 17.8%. 2. The bagging method is wrong. Some people say that bagging grapes must be finished within 6 days after spraying, but this is not the case. Practice has proved that after spraying grapes, you should wait for the liquid to dry and grasp the bag tightly. It is best to finish it on the same day. The planting area is large, and it can be carried out in blocks. The number of bags per day can be calculated according to labor, bagging speed, etc. As many bags as possible can be sprayed. Avoid bagging without spraying the liquid after spraying, as this can easily cause rotten fruit. It should also be noted that when bagging, try to avoid touching the fruit with your hands, and the upper mouth must be tied tightly to prevent rain leakage. 3. There is a problem in the fight. The timing of spraying is very important. Do not spray when there is dew. Do not spray when the sun is shining at noon or when there is strong wind. It is best to spray medicine from 7 am to 10 am, avoiding dew and direct sunlight; the spraying should be uniform, not to spray too much, or miss the spray. The hedge grapes should be sprayed on both sides, and the scaffold should be sprayed on both sides of the ears. The spray head of the sprayer should choose fine rotary tablets, which is conducive to fine and uniform spraying. 4. Paper bag quality problem. The grape bagging has many advantages, such as disease prevention, pollution prevention, bird damage prevention and insect pest prevention, which can guarantee the yield and quality of grapes. Buy standard wood pulp paper bags, which are expensive but safe and secure. Some non-regular manufacturers of paper bags produced from inferior paper and newspaper-made paper bags that have been used once can easily cause rotten fruit in the bag. Disclaimer: Some articles of this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for processing. phone Veterinary Medicine Oral Solution Animal Liquid Drug,Vet Oral Solution Medicine,Oral Solution For Animal,Animal Oral Solution Drug Ruicheng Lvman BioPharmaceutical Co,Ltd , https://www.rclvman.com