Molecular evidence of phyllosticta citricarpa and other species in citrus black spot in the Amazon Region.
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Citrus black spot (CBS), caused by Phyllosticta citricarpa, represents one of the most destructive diseases in Brazilian citriculture, leading to yield losses of up to 85%. The disease is characterized by necrotic lesions on the fruit exocarp, depreciating commercial value and, in severe infections, inducing premature fruit abscission. Beyond its economic impact in domestic markets, CBS is categorized as an A1 quarantine pest by the European Union, restricting Brazilian citrus exports and reinforcing its phytosanitary relevance. While CBS has been extensively documented in southeastern Brazil, little scientific evidence exists on its occurrence and epidemiology in the northern region, particularly in the state of Amazonas. In 2021, CBS outbreaks were recorded in a commercial sweet orange orchard in Manaus, comprising the cultivars ‘Pêra’ and ‘Valência.’
CBBiotec 2025.
CBBiotec 2025.
Palabras clave
Fungus, Phyllosticta spp, Fungo, Citrus black spot