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Global food security could be threatened in the coming years by the emergence and spread of emerging pests in crops. Psyllids are considered as possible destructive pests due to their relationships with some important plant pathogens. Bactericera cockerelli Sulc (Hemiptera: Triozidae) is recognized as an efficient vector of the bacterium Candidatus Liberibacter solanacearum (CaLsol), an invasive pest according to the EPPO, which causes diseases in potatoes, tomatoes, peppers, and other solanaceous and some apiaceous crops. Known the vector-bacteria complex to be present in different countries of the world belonging to the American continent, Europe and New Zealand, 61 scientific papers related to this topic were reviewed. Changes in the climatic variables, the biological distribution of this insect-vector system, the high ecological plasticity that allows this insect to develop different biotypes, depending on the characteristics of the area where it develops, could complicate the control of the insect-pathogen system. These characteristics make necessary a maintained extreme surveillance in those countries where it is not yet present. So far, the bacterium and the vector are not present in Cuba; however, its proximity to countries where it is present, the existence of optimal climatic conditions host plants, and the increasing tourism and international trade, make necessary to offer updated information on this disease, the causal agents and their vectors as a contribution to the preparation of the scientific-technical-productive personnel and other decission makers. [ABSTRACT FROM AUTHOR]