This kind of disease is usually after the mildewy rain, the occurrence is quite many. At the beginning of the disease, there will be a lot of white filaments at the base of its leaves, so that its roots will rot.
Control method: first, we can remove the soil with bacteria, and then sprinkle some lime on it. It can have a good effect. At that time, if you want to achieve a complete cure, you need to pay attention to ventilation and light transmission in normal times, so that the drainage of that basin of soil is better. For some of the more serious disease, we must burn it in time.
Generally speaking, this kind of disease basically exists all year round, especially when it is hot and rainy. Generally, the disease spots extend from the tip of the leaves to the roots. At first, they are brown, and then they will gradually expand. There are many small black spots, which will cause the whole plant to die when it is serious
Prevention and treatment: at the beginning of the disease, you can spray with some drugs, basically once every 7 to 10 days. Then add a little auxiliary solution, spray once every half a month, spray 3 to 5 times in the middle.
It is also a very annoying insect. The reproduction speed is very fast, especially when the high temperature and air flow are not smooth. They will directly cause great damage to the leaves of the plant. When it is serious, they can eat almost all the leaves of the whole plant, which directly affects the growth of the plant and makes the appearance look ugly.
Prevention and control method: if the quantity is not too large, we can remove it by ourselves, but we must completely eliminate it and prevent and produce new eggs. If the quantity is very large, it should be sprayed with some special pesticides, which can also cure this kind of insect.
