Technical Chapter “Fusarium oxysporum f.sp. cubense Tropical Race 4 (Foc TR4)” – Book of Prioritized Absent Quarantine Pests

This technical document provides a comprehensive scientific description of Fusarium oxysporum f.sp. cubense Tropical Race 4 (Foc TR4), detailing its taxonomy, host range, global distribution, infection biology, mechanisms of dispersion, environmental requirements, symptoms, economic impact in affected countries and recommended phytosanitary management strategies. It supports Brazil’s prioritization of Foc TR4 as a major absent quarantine pest and provides the technical basis for surveillance, quarantine actions, diagnostic protocols, biosecurity measures, and risk mitigation strategies within the national plant health system.