The reason why the trunk of the Osmanthus fragrans tree turns black

1. Infection

Reason: If not properly maintained, Osmanthus fragrans may be infected with diseases, such as rust, which is relatively common. Not only will it damage the leaves, it will also affect the trunk, causing it to turn black, and then causing the branches to rot inside, and may even lead to the death of the plant, which is quite harmful.

Solution: Take appropriate precautions, pay attention to ventilation, and avoid diseases. If the disease occurs accidentally, it is necessary to remove the diseased branches and trunks, and then spray the appropriate pesticides.

2. Infection with pests

Reason: If the tree is infected by pests, it may also cause the trunk to turn black, which can be quite harmful.

Solution: When the number of pests is relatively small, you can first capture them manually or spray them with homemade medicines. However, generally speaking, when the tree trunks turn black, it means the situation is more serious and needs to be sprayed with medicines for treatment.

3. Excessive water

Reason: Osmanthus fragrans needs a certain amount of water during its growth process, but if it is not applied according to its growth trend and too much water is given, it will cause water accumulation and rot at the roots, which will spread upward and affect the branches and cause the trunk to turn black.

Solution: Control the application of water to promote rapid evaporation of water, and then remove rotten roots.