How to trim the branches of a big tree What are the ways to trim the branches of a big tree?

1, light and short pruning: light pruning of the top of branches (1/5— 1/4 of the total length of branches), mainly used for pruning the robust branches of flowers and fruits. This pruning method stimulates the germination of most semi-full buds at the lower part of the branches after the top tip is removed, which disperses the nutrients of the branches, so that the branches of ornamental flowers and fruit trees in the garden can grow more short and medium branches in the coming year, which is easy to form flower buds.

2. Short-medium cutting: cutting off full buds (the cutting length is1/3-1/2) in the middle or upper part of branches, which is mainly used for rejuvenation of some weak branches and cultivation of backbone branches and extension branches of various trees.

3. Rough and short shears: cut off 2/3-3/4 of the total length of branches. Pruning has a great stimulating effect, which is mainly used for the renewal and rejuvenation of weak trees, old trees and old weak branches.

4. Extremely heavy and short cutting: leave 1-2 dead buds at the base of the tree belt, and cut off all the others. Lagerstroemia indica often uses this method in gardens.

5, retraction: it is to cut off some perennial branches. Because trees grow for many years, they are far from the top of branches and their legs are easily exposed at the base. In order to reduce the dominant position of the top and promote the renewal and rejuvenation of the base of perennial branches, retraction pruning is often used.