Bagging is an important measure to improve the appearance quality and commodity value of fruits. After bagging apples, it can promote coloring, keep the fruit surface smooth and improve the appearance quality of goods; Second, it can reduce dust pollution and pesticide residues; Third, it can prevent diseases, insects and birds, and avoid scratching branches and leaves. In addition, the special bag also has the special function of preventing sunburn. In areas with serious fruit rust, bagging is the most effective measure to prevent fruit rust, with clean and bright peel and less wrinkled skin. However, bagging will have a certain impact on the inherent quality of fruit, such as flavor and sugar content.

2. Pick the leaves, turn over the fruit, and spread a reflective film.

Fuji apple is mainly colored by direct light, but it is not well colored by scattered light. Therefore, except before bagging 1 week, remove the leaves in the range of 5~ 10cm near the leaves and branches of the fruit table to make the ground light transmittance reach about 30%, then remove the outer bag and remove the inner bag a few days later. After taking off the bag, after 5 ~ 6 days of bathing, gently hold the fruit with your hands, so that the reverse side turns to the front side and the color of the fruit is even. Turn it again in 1 week to fully color the fruit. When picking leaves and turning fruits, we should pay attention to the synchronization between picking leaves and fruit coloring (usually in mid-September).