In October 2024, a survey in hazelnut orchards in the Tarragona area (Spain) revealed 30% incidence of trunk diseases, with symptoms including branch dieback, wedge-shaped cankers, reddish conidia masses, and, in severe cases, branch breakage and plant death. Morphological and molecular characterization of fungal isolates identified Anthostoma decipiens and Neofusicoccum parvum as the causal agents. Pathogenicity of both species was confirmed on potted C. avellana plants (cv. Pauetet) following Koch's postulates. This is the first report of A. decipiens and N. parvum causing hazelnut trunk diseases in Spain.
First Report of Anthostoma decipiens and Neofusicoccum parvum Causing Fungal Trunk Diseases on European Hazelnut ( Corylus avellana ) in Spain
Piattino, Valeria;Spadaro, Davide;Guarnaccia, Vladimiro
2026-01-01
Abstract
In October 2024, a survey in hazelnut orchards in the Tarragona area (Spain) revealed 30% incidence of trunk diseases, with symptoms including branch dieback, wedge-shaped cankers, reddish conidia masses, and, in severe cases, branch breakage and plant death. Morphological and molecular characterization of fungal isolates identified Anthostoma decipiens and Neofusicoccum parvum as the causal agents. Pathogenicity of both species was confirmed on potted C. avellana plants (cv. Pauetet) following Koch's postulates. This is the first report of A. decipiens and N. parvum causing hazelnut trunk diseases in Spain.
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Descrizione: First Report of Anthostoma decipiens and Neofusicoccum parvumCausing Fungal Trunk Diseases on European Hazelnut(Corylus avellana) in Spain
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