Bougainvillea is also called bougainvillea. The common pests are mainly leafhoppers and aphids. The common diseases are mainly shoot blight. Usually we must strengthen weeding and weed control, timely removal of dead branches and diseased leaves, and pay attention to ventilation to reduce the spread of the disease. Strengthen the examination of the condition and find out the condition in time. It can be treated with dimethoate, thiophanate and other solutions. Bougainvillea has brown spot disease, which is mainly reflected in the leaf veins. At the early stage of disease, there are yellow-brown or dark brown round spots on the leaves, yellow-green halos around them, and later the lesions are irregularly shaped and gradually darken. In the later stages of the disease, black granules appeared on the lesions, eventually causing leaves to fall off. The onset of brown spot disease is more common in spring and early autumn. Control methods: 1 to allow plants to be airy and transparent; 2 to pay attention to increase or maintain the humidity of the leaves; 3 infection should be promptly cut off the diseased branches, diseased leaves, and be destroyed; 4 in the early stage of infection, spray 50% tune special 1000 Double the solution or other fungicides can inhibit the development of the course of the disease. Rongcheng Jingyi Oceanic Technology Company Limited , https://www.jingyifoods.cn