How to deal with trunk cracking and the reasons for cracking.

First, how to deal with the crack in the trunk? If the trunk is found to be cracked, the wound can be disinfected with bactericide, the dry part of the tree can be coated with healing agent, and then some redundant leaves can be cut off to reduce the burden of branches that cannot supply enough nutrients and water because of injury. Wrap the suitcase tightly with cloth. After a period of time, the split wound will heal itself.

Second, the cause of trunk cracking 1, the temperature difference between daytime and burning is large: after entering the spring, due to direct sunlight, the temperature of the trunk rises, while the temperature drops rapidly at night, and the temperature difference is relatively large, which will cause the bark to shrink greatly, causing the trunk cortex to crack, which will lead to xylem cracking together in severe cases. In order to prevent this from happening, the trunk can be painted white in early spring and late autumn, which can reflect sunlight, reduce the direct sunlight on the trunk and effectively prevent the trunk from cracking.

2. Pest erosion: During the wintering period, if the eggs are hidden in the trunk, pests may corrode the trunk and cause the trunk to crack.

3. Improper fertilization: When planting trees, too much nitrogen fertilizer is applied, resulting in rapid growth of cambium, poor lignification and cracking of trunk.

4. Growth speed: If the climate is very suitable and the growth speed is fast, the thickness of the trunk will increase obviously, which will easily spread the necrotic part of the cortex and lead to longitudinal cracks on the trunk.