Intention of this research is to test the ability of isolate Trichoderma sp and get the best isolate in controlling disease leaves of bligh on dendrobium orchid. This research conducted experimentally use Complete Random Device (RAL) by 5 (is) treatment is Trichoderma sp isolate of the following dendrobium orchid: T0 = without Trichoderma sp, T1 = isolate T-ag, T2 = T-sa, T3 = T-k, T4 = b. Resu…