1. Rust: this disease is mainly harmful to leaves, fruits and stems, with different degrees of damage, which may cause defoliation, curling and poor growth. If it is serious, it will cause rapid death due to a large amount of evaporation of water, and the damage is also very serious.
2. Fusarium wilt: this disease is mainly caused by fungi, which will cause a large number of spot spots, affect flowers, leaves, fruits and stems, and even cause plant death in serious cases.
If the ventilation condition is not good during the growth and maintenance, it will lead to the harm of aphids and scale insects, and will suck juice on the plants, resulting in the poor growth of the plants and many problems in the growth.
1. Disease: disease occurrence is mainly based on prevention. It is necessary to strengthen ventilation conditions, enhance the growth of plants, and promote the growth of healthy plants. It is also necessary to cut off the diseased branches and diseased branches in winter. If you get sick, you can spray a little antibacterial.
2. Insect pest: strengthen daily ventilation, disinfect the soil before planting, ensure that there is no bacteria in the soil, and prevent insect pest from being infected. If you get sick, you can spray some medicine to kill.