Trichoderma species are cosmopolitan, typically soil-born, and able to growth on plant debris and frequently dominant member of soil microflora. In this study, 23 fungal isolates include Trichoderma asperellum, T. atroviride, T. harzianumand T. arundinaceum were isolated base on antiseptic methods from root and stem of different hosts. T.asperellum from roots of Allium schoenoprasum, Solanum melongena, Cynodon dactylon, T. atroviride and T. harzianum from root and stem of Nicotiana tabacum and T. arundinaceum from roots of Beta vulgaris, Vitis vinifera and Mentha arvensis.These species could be endophytic Trichoderma of Kurdistan Province that are reported for first time from Iran.
