1、 Soft rot

Symptoms: the plant is still in an upright state, but it has died. After cutting the stem, you will find that there are yellow and white mucilages in it, which emit a bad smell, and the diseased part is soft and rotten. The source of infection may be insects or soil, so attention should be paid to both

Treatment: in terms of prevention, first disinfect the soil, expose it to the sun, and then plant it. Also add carbendazim powder to ensure that the bacteria can be removed

2、 Fusarium Wilt

Symptoms: there are a large number of toxins and bacteria in the upright part, which blocks the transmission of water and nutrients, resulting in weak root growth, and the plant will also lack water and nutrients, resulting in the final drying and death. It usually invades through the wound and spreads through soil infection

Treatment: the loam was treated and disinfected before, and it can also be replaced with new soil after disease infection is found

3、 Leaf spot

Symptoms: at the beginning, small black spots will appear on the branches, and in the later stage, the spots will gradually expand, resulting in black spots on the whole plant

Treatment: cut off the dry part to prevent further infection, and spray the agent chlorothalonil