Diversity and distribution of co-infecting Botryosphaeriaceae from Eucalyptus grandis and Syzygium cordatum in South Africa

► Cross-infectivity of several species, novel host associations and new country reports revealed. ► Neofusicoccum eucalyptorum, N. kwambonambiense, N. parvum, N. australe and Lasiodiplodia pseudotheobromae were identified from both tree species. ► L. pseudotheobromae and N. eucalyptorum isolated for the first time from S. cordatum, similar to N. kwambonambiense from Eucalyptus. ► This also represents the first report of L. pseudotheobromae from South Africa.