1. Powdery mildew: small yellow spots grow on the leaves when the disease occurs, and there will be white bacteria in the later stage. At the initial stage, it can be sprayed with carbendazim WP 1000 times.
2. Anthrax: at the beginning, there will be several light yellow spots on the leaves, which will turn black in the later stage, and then gather to form a black one. When it is serious in the later stage, the whole plant may die. This disease is generally caused by wound invasion bacteria. Attention should be paid to prevention, not planting too tightly, and more ventilation and ventilation should be strengthened. If the disease has been found, it needs to be cut off in time and sprayed with 80% Fumei anthrax 600 times solution.
3. Soft rot: it is easy to get in high temperature and humid weather. At the beginning of the disease, the leaves will appear water spots, and then quickly become brown soft rot, and will send out odor. If you find this problem, you need to cut off the diseased leaves and spray them.
This kind of insect usually lives on the leaf sheath and stem of the leaf, which will lead to the gradual decline of the plant, and may cause death due to infection. You need to pay attention to the ventilation. If you find any pests, you can brush them down with a small brush, and then flush them with water. If the situation is serious, it can be sprayed with chemicals, and it needs to be cleaned three times in a row.