Main disease: leaf spot

This disease mainly damages its leaves, and its transmission is very strong. It can be transmitted by air flow, rain and other ways. It can also overwinter on the surface of the soil and harm the meat in the next year. This disease may occur throughout the year, but the most serious period is from August to September. At this time, the temperature is high. If the gas in the breeding environment does not flow and the rainy days are humid, this problem is very easy to occur

Prevention and control methods

Improve the environment, strengthen the flow of gas, do not accumulate water during water supply, and do not let the soil layer be too wet for a long time. When the disease occurs, it can be sprayed with drugs and isolated from other plants. Before winter, the diseased parts should be removed, and the fallen leaves should be cleaned up, so that the soil can be turned over properly. Reduce the probability of disease overwintering on the soil surface

Main pest: Black weevil

When this pest occurs, it will seriously affect the ornamental degree of plants. They eat the leaves of plants to survive. In serious cases, it will also cause other problems

Prevention and control methods

A small amount can be captured manually or sprayed with drugs. In serious cases, the whole plant shall be destroyed