Twenty-five endophyte isolates were obtained from healthy roots,stems and leaves of Ginkgo biloba L.The results of preliminary test exhibited 16 endophyte isolates significantly antagonized six plant patho-gens,especially the endophyte T4 strain.The results of mycelium growth rate showed the ferment broth of T4 had strong antagonistic action against Fusarium oxysporum,Cytospora mandshurica,Colletotrichum gloeosporioides,Venturia pirina and Fusarium graminearum,especially against Cytospora mandshurica with 9...