1. InfectionIt may be due to the influence of humid weather, which causes problems in the surrounding environment and causes bacteria to breed. If the tree trunk turns black, it may be due to infection with brown spot disease or black spot disease, which will not only cause the trunk to turn black, but also endanger the healthy growth of the plant itself. To alleviate this situation, it is necessary to strengthen ventilation, cut off diseased branches in time, and then spray pesticides for treatment. 2. Infection with pestsPoor ventilation not only makes it easy for trees to be infected by diseases, but also by insect pests, such as scale insects. Infection with insect pests can have a great impact on trees. If the number is still small, you can first kill them manually, or apply homemade medicines, such as soapy water. If the situation is more serious, you can spray the medicine. 3. Excessive waterAnother possibility is that the water is not applied correctly. If too much water is given, the roots cannot absorb all the water, making it difficult to breathe normally and causing suffocation. Problems with the roots will cause the entire trunk to turn black. To alleviate this situation, the water in the pot can be evaporated, and then the soil in the pot can be kept at a normal level of dryness and wetness. |
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