Paraconiothyrium fuckelii, Diaporthe eres and Neocosmospora parceramosa causing cane blight of red raspberry in Northern Italy

Abstract Red raspberry ( Rubus idaeus L.) represents a relevant crop which production has largely increased worldwide during the last decade. Cane blight is one of most common diseases red and it can produce considerable losses. During 2019–2021, surveys were conducted in orchards Cuneo province, Northern Italy, to investigate etiology pathogen diversity association with cane blight. Eleven isolates collected from symptomatic plants cultivars ‘Diamond Jubilee’ ‘Grandeur’, identified through multi-locus phylogenies morphological features. Three fungal species identified: Paraconiothyrium fuckelii , Diaporthe eres Neocosmospora parceramosa . Four different genomic regions included molecular analyses: ITS, tef1 tub2 rpb2 The pathogenicity was confirmed P. revealed as aggressive. This study provides an insight into Italy loci sequencing lay basis develop specific diagnostic protocols monitor presence pathogens prevent disease spread, adopting effective integrated control strategies.