Tomato yellow leaf curl virus disease is transmitted by whiteflies. Bemisia tabaci has mobility in the field. Therefore, four key technologies must be mastered for the control of Bemisia tabaci: First, early treatment is small, and early control of Bemisia tabaci population density is relatively low. Bemisia tabaci nymphs are of low wax content and cannot be crawled. They have many opportunities for exposure to pesticides, poor resistance to drugs, and are easy to control. Second, they use uniform drugs for concentrating and conjoined medicines, and they are not suitable for insects. They have many hosts, strong mobility, and high fluidity. The whole ecological environment, especially the uniform use of weeds outside the field, can control the reproductive hazards; the third is the entire period of drug control in key periods. B. tabaci breeding rate is high, life cycle is short, the number of groups is large, the generation overlaps severely, eggs, nymphs, adults of a variety of long-term coexist, in the July-September period of B. tabaci breeding peak period must be full drug control Control the proliferation of harm; Fourth, select the quasi-drug, alternating use. The agents that have better control effect on whiteflies include imidacloprid, avermectin, butylthioimidacloprid, buprofezin, fipronil, and the like, and different medicaments are alternately used to delay the development of resistance. When the field shows symptoms of tomato leaf curl virus disease, virus inhibitors can be sprayed at the early stage of the disease to enhance fertilizer and water management, promote robust growth of plants, and reduce the incidence of losses. Virus inhibitors may be selected from the group consisting of Gram-negative glucagon, phytoalexin II emulsion or morpholinium ketide.
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