1、 Onset symptoms

When it suffers from anthrax, the injured position is mainly the leaves. In the early stage of the disease, some irregular brown spots will appear on its leaves. Later, with the extension of time, these leaves will slowly turn gray white, and many small black spots will appear on the spots. It not only affects the growth of the plant, but also greatly affects its beauty

2、 Incidence law

The rule of this disease is usually that the mycelium stays on the diseased leaves for the winter, and then wait until next spring, they will continue to produce spores, and then add the transmission of wind and rain to cause the disease. This disease usually occurs more easily in muggy weather. In severe cases, it will make all the leaves of the plant scorch or fall

3、 Prevention and control methods

1. First of all, we should strengthen its management. We can apply more organic fertilizer in order to enhance its physique and improve its resistance

2. Secondly, do not water the leaves. At the same time, reduce the humidity of the air when there is a lot of rain

3. Finally, when diseases are found, the diseased leaves can be cut off and burned in time. At the same time, some drugs can be sprayed on the plants, which can also have a good therapeutic effect. The spraying time is once in 10 days. A total of 2 to 3 times is enough