Symptoms: the disease will make the leaves thinner, the edge of the leaves appear scorch and shrink, and the color of the leaves also changes from green to yellow white, which seriously affects the ornamental.
Prevention and control: the prevention and control of this disease is very simple. It likes half shade growing environment, so it needs to be planted under the shade outside. If the indoor potted plant is maintained, it also needs to avoid the place with strong light, especially in the summer with strong light, it can be effectively avoided by shading the sun.
Symptom: the main symptom is that the whole plant begins to shrink, the growth will be slow, and the leaves will become wrinkled and green.
Prevention and control: pay attention when planting. Do not choose seedlings with virus. If you find sick plants, you need to remove them and burn them in time.
Symptoms: this disease is mainly caused by fungal infection, which will cause the formation of disease spots on the leaves. Most of these spots are round. When the disease is serious in the later stage, the disease spots on the leaves are connected together, so that the leaves have problems until the leaves fall early.
Prevention and control: remove the sick leaves in time, and then gather them to burn. In the period of serious disease, it can be treated with medicament, such as zinc Daisen, carbendazim, etc.
