Prevention and Control of Diseases and insect pests of Mulberry after Summer cutting

First, disease mulberry red rust. The symptom is that the tender buds are swollen after being killed, showing abnormal bending, and the surface is covered with yellow micro-raised dots (rust seed apparatus). The leaves were killed, at first, the disease spots with round and glossy, slightly raised yellowish spots were scattered on both sides of the back, and then gradually thickened and raised into orange spots. In the later stage of the disease, the epidermis of the disease spots ruptured and scattered orange powder (rust spores) covered with the whole leaf. The leaves are easy to fall off, commonly known as iron rust. Prevention and control methods: at the end of July and the beginning of August, 80% Dysen zinc wettable powder 250-300 times liquid spray, 7-10 days once, 2-3 times in a row. After the mulberry root of mulberry bacterial wilt was damaged, the plant lost water, and the leaves withered and drooped. The lateral taproot and lateral root of the long-diseased plant showed wet rot, some blackened and decayed, and the whole plant withered. Prevention and treatment: at present, there is no specific drug for the prevention and treatment of the disease. Prevention must be strengthened. According to the author's practical experience, agricultural streptomycin should be used to control mulberry trees 10 to 15 days after summer felling. When mulberry purple feather disease occurs, the root skin initially turns yellowish brown, losing luster, and then gradually dark brown, leaving only detached cork and xylem. The surface of the injured root is covered with a purple sclerotia with a filamentous purplish red rhizomatous hyphae. After the mulberry root was damaged, the branches and leaves grew slowly, and finally the whole plant withered. Control method: 667 square meters with 50% carbendazim 5 kg soil mixed with ploughing and sprinkling. Second, the serious pests from July to September are mulberry thrips, mulberry whitefly, leaf mites, mulberry inchworm, mulberry borer and so on. Corresponding measures should be taken to control different insect pests.