Fomitiporia punicata and Phaeoacremonium minimum associated with Esca complex of grapevine in China

Abstract The Esca disease complex includes some of the most important trunk diseases grapevines ( Vitis spp.) and causes serious yield losses in grape production worldwide. However, there has been no detailed study on its presence associated pathogens China. During 2017–2019, a preliminary field survey was conducted eight vineyards Hebei Ningxia provinces, China when unusual foliar symptoms were observed. Symptoms distinct tiger striped leaves, which are typical grapevine leaf stripe (GLSD), one common complex. Tiger-stripe found four vineyards, incidence cultivar dependent varying with vineyard year. A total 266 fungal isolates obtained from wood tissues GLSD. Based morphological characters multigene-combined phylogenetic analyses, Ascomycete Phaeoacremonium minimum , identified. basidiomycete Fomitiporia punicata never reported infecting grapevine, also identified to be rot grapevine. remaining included known pathogens, such as Neofusicoccum species Diaporthe species. Koch’s postulates performed greenhouse, confirming that both F. P. caused interveinal chlorosis necrosis resembled GLSD observed field. present provides first report In addition, this is record results provide new insights into knowledge