Symptom: this disease is one of the high incidence diseases. It often happens if the maintenance is not good. There will be a lot of yellow spots on the leaves after the disease, and they will be connected in the later stage.
Prevention and control: after infecting this disease, it is necessary to cut off the diseased leaves to prevent infection of healthy leaves. In addition, 10% of the antibacterial agent acetic acid solution should be sprayed in time, almost every three days, so as to improve the symptoms.
Symptoms: this disease is also a high incidence. It occurs at the root, causing root rot, hindering growth and causing growth problems.
Prevention and control: mainly according to the adjustment of soil pH, some sulfur powder can be filled in the soil, which can adjust the pH balance and reduce the occurrence of root rot.
Symptom: aphid is a high incidence insect pest. It usually appears in April. It will gather together in groups and suck the juice in the plant, which will lead to its poor growth and may lead to dryness.
Prevention and control: pay attention to the maintenance at ordinary times and try to avoid this situation. If there are aphids, they can be sprayed with chrysanthemum fat in time, which can play a very good effect and make them quickly eliminated.
