Figure 1: Native Trichoderma isolated from agricultural sandy soils of “Gran Desierto de Altar” in Sonora, Mexico (32°19’58.4”N 114°52’08.4”W) growth after 7 days on PDA at 28°C: (A)Trichoderma harzianum 8.4, (B) T. asperellum 12-2, and (C) T. asperellum BP60. (D) Competition assay of T. asperellum BP60 with Setophoma terrestris after 10 days of growth, (E) production of siderophores and (F) chitinase production.