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This study investigated the endophytic interactions between Botryosphaeriaceae pathogens and their woody hosts and the role of wounds in development of infection of green tissues. At 2 and 3 months after inoculating trunks of 2 year old grapevine plants with Neofusiciccum australe, N. luteum, N. parvum or Diplodia mutila, sap samples provided no evidence of pathogen propagules, indicating that the dieback symptoms observed at a distance from the lesions on inoculated sections of the trunks were not due to internally transmitted propagules. However, longitudinal sections cut from beyond trunk lesions showed hyphae of the four fungi grew within xylem vessels, which was consistent with endophytic fungal development observed in previous experiments. When conidia of N. luteum were inoculated onto green shoots and leaves of potted grapevines, which were wounded or non-wounded, and excised …