1. After the grapes have long ears, they should be thinned in time, and the weak and extra-large ears should be removed, leaving only the same size, so that the fruit will develop evenly in the later stage.

2. Also trim the fruit, remove the small fruit with poor fertilization, and ensure that the fruit is evenly distributed and not squeezed between each fruit.

3. Spray bagging in time to prevent plant diseases and insect pests.

4. When bagging, the mouth of the bag should be tied tightly to prevent rainwater from pouring in.

In addition, there are many nutrients consumed in the fruit period, so topdressing should be done in time.