How many times does it take for a walnut tree to bear fruit? (What month should a walnut tree be cut with a knife?)

Ring barking, ring cutting or barking of fruit trees all have the effect of inhibiting vegetative growth, promoting flower bud differentiation and increasing fruit set rate.

Trunk treatment is mainly aimed at trees that grow too vigorously and do not bear fruit.

The treatment of large branches mainly involves girdling or ring barking of auxiliary branches or temporary branches, while girdling of main branches is generally not performed.

The treatment of small branches is mainly aimed at vigorous growing branches, especially the upright vigorous branches on the back.

When ring cutting, girdling or peeling the fruit tree, the scope of action is different depending on the part of the tree that is treated. Treating the trunk is effective for the entire tree, while treating large branches and twigs is limited to the part above the wound of the treated branch.

When the walnut tree is vigorous and has strong growth potential but produces few fruits, you can ring-bark the bare auxiliary branches and main trunk at the base. The purpose of this is to moderate the tree's vigor, increase the fruit setting rate, and promote the sprouting of new branches under the ring.

Attention must be paid to the timing and width of walnut tree ring barking. The time should be mid-to-late May, and the width of the ring barking should not exceed 0.6 cm. It is not as simple as cutting a few times as the questioner said. Otherwise, it may cause the tree to weaken or even die.

Let me say a few more words about some things you should pay attention to when ring cutting, girdling or barking fruit trees.

1. Meaning of the name

Ring barking usually only involves peeling off a circle, which means using a knife or other tools to peel off the phloem on the branch in a circle.

Ring cutting is to use a knife to cut the bark of the branch in a ring, or to use a hacksaw blade to press into the bark of the branch in a ring, and you can cut several circles.

Barking is the process of stripping a certain width of bark from the trunk of a fruit tree. This must be done without damaging the mucous membrane (cambiosis) on the surface of the xylem.

Ring barking and girdling can temporarily cut off part of the drainage tissue and change the nutritional status of the upper and lower parts.

Ring barking, girdling and peeling are mostly carried out in May and June. At present, ring barking is widely used on fruit trees such as jujube, apple, pear and persimmon.

2. Processing time

The time of treatment is related to the purpose of the treatment. To promote flower bud differentiation, it is generally carried out before flower bud differentiation; if it is to increase the fruit setting rate, it can be carried out before or after the flowering period.

3. Width and depth of ring barking

The appropriate width of the ring barking is 1/8-1/10 of the diameter of the branch treatment . If it is too narrow, it will heal early and fail to achieve the purpose. If it is too wide, it will not heal for a long time, inhibiting the growth of nutrition and even causing the death of the tree.

The appropriate depth is to cut into the wood. If it is too deep, the ringed branches and trunks will die easily. If it is too shallow, the effect will not be obvious. For tree species and varieties that are sensitive to ringing, methods such as ring cutting can be used, such as peach trees.

4. Number of treatments

Generally, the treatment is done once a year, one circle at a time. If the tree is still strong after the wound heals for 20-30 days, a second treatment can be carried out.

5. Protect the girdling wound

To prevent damage to the wound by pests and diseases and promote healing, the wound can be protected by applying medicine or wrapped with plastic sheeting or paper.

6. Partial girdling

If there is no need to control the growth of the entire tree, some of the vigorous branches can be ring-barked.

7. Processing Objects

Young trees and weak trees should not be ring-barked, otherwise they will become weaker or even die.

8. Treatment area

The suitable position for treating the main trunk is 5 cm above the ground and below the first main branch. The position for treating large branches and twigs can be at their base or at the planned retraction point.

In short, it is not scientific to cut down a walnut tree with a knife if it does not bear fruit. The girdling should be done according to certain requirements, and attention should be paid to the time and method , as well as the location of the girdling, rather than doing it arbitrarily and leaving it at that. Otherwise, it will affect the tree's vigor, or even cause the tree to die.