Symptoms: the main common diseases are root rot and stem rot. the former is affected by the root, and the main symptom is that the root will rot, which will affect the transport function. It is difficult to transport water to the plant and maintain normal growth. The damaged part of the latter is the leaves first, the leaves below begin to turn yellow at the beginning, then gradually expand to the top, resulting in yellow spots on the leaves, and the later situation is gradually serious, which will lead to the whole stem rotting.
Prevention and control: it is mainly based on prevention. Moving it to places where the rain can't get to can greatly reduce the possibility of disease. After drenching, pour out the rain in time, and spray fungicide on the plants.
Symptom: there are thorns on the whole plant, so many insects are hard to get close to, but there are also some relatively small pests, such as scale insects. When the disease occurs, it will be densely distributed on the plant, causing damage to the whole growth.
Prevention and control: it is better to ventilate in advance to prevent these hazards. Once the disease occurs, it is difficult to remove it manually because of the sharp spines on its whole body. It needs to spray directly with insecticides, such as imidacloprid or chlorpyrifos.
