1. Disease

(1) The first is called "gray mold". It is a disease caused by fungi. When the temperature is relatively high and the humidity is also relatively high, this disease occurs more frequently. It has a wide range of hazards, and leaves, flowers and stems may be damaged. To prevent it, we first need to clean up the parts that have been affected by the disease. In addition, you can spray some medicine, such as metalaxyl and so on. In addition, the subsequent management is also very important. For example, when applying fertilizer, apply more fertilizer containing P and K to improve the ability of disease resistance. Also, strengthen ventilation and don't pour too much water in rainy days

(2) The second disease is called "root rot". As the name suggests, it is mainly harmful to the root. First, the root of the plant will rot. Then, due to the inability to absorb water and nutrients, the whole plant may die. The disease often occurs from March to May. To deal with this disease, you can also use metalaxyl. In addition, disinfection of soil is also a good way

(3) The third is called "bacterial wilt", which is also the main harm to the root. It may cause some brown spots on the plant. At its worst, it will gradually dry up and die. If we are infected with this disease, we must first disinfect the soil. Then there is spraying, such as chlorothalonil and so on

2. Pest

There are many pests endangering this plant, such as "aphids", "grubs", "land tigers" and so on. They often appear in groups, which is relatively harmful. The most effective way to deal with them is to spray all kinds of medicine. For example, Omethoate, etc