The main disease of Begonia verticillata is rust, which usually occurs in late April. At first, there will be orange dots on the leaves, and then the infected parts become thicker, causing the back of the leaves to rise. When planting, it is necessary to avoid the infection of the disease cycle together with cypress, juniper and other tree species. If you find that you are ill, you can cut off the infected part, and then destroy it intensively to prevent infection to other healthy parts, which will be harmful to your growth. In order to get a good therapeutic effect, it is necessary to spray colloidal sulfur, sulfur preparation disodium rust and other chemicals to determine the location of the disease.
The main pests are red spider, apple aphid, horned wax scale and so on. These pests are mainly harmful to stem, leaf and rhizome of Begonia verticillata, leading to water shortage and drying of infected parts, limiting growth and seriously affecting health. It can be pruned in winter, targeted to cut off the branches, can effectively prevent the occurrence of pests. When it is found that there is pest impact, it is also the first to use pruning method to prevent the situation from becoming more serious, and then cooperate with spraying.
