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In this study, we built a basic scenario for risk assessment of the introduction of Xantomonas citri (X. citri), an agent of bacterial citrus canker, through international trade activities. According to the international phytosanitary authority European Food Safety Agency (EFSA), X. citri is currently included in the European Union A1 list (quarantine pests not present in the area) of the European and Mediterranean Plant Protection Organization (EPPO). Therefore, at the moment, to counter the spread of X. citri, some pest-specific phytosanitary requirements are foreseen in the case of citrus fruit commercial activities. One possible introduction route is through some ornamental Rutaceae, which are widely cultivated in Mediterranean countries, where they are economically important and have a social impact on the employees involved and the related industries. To assess the risk of introducing X. citri, we distinguished the import and export territories and the type of import material, and formulated a basic hypothesis linked to the positive correlation between commercial dependence on citrus imports from countries of the Mediterranean Basin and potential risk of invasion. |
