Dollar spot (DS), caused by Sclerotinia homoeocarpa F. T. Bennett, is a foliar disease of warm- and cool-season grasses and occurs frequently throughout the growing season. A three-year study was conducted to evaluate the efficacy of biofungicides for controlling DS of bermudagrass [Cynodon dactylon (L.) Pers. var. dactylon × C. transvaalensis Burtt-Davy]. The biofungicides evaluated in this study were EcoGuard, TurfShield, and Actinovate SP. A slow-release organic fertilizer was applied in conjunction with biofungicide and conventional fungicide treatments in 2006. All biofungicide treatments significantly reduced dollar spot severity (DSSv) in the spring of 2004. However, treatments were similar to the untreated control in 2005. Dollar spot severity was significantly reduced in plots that received organic fertilizer plus biofungicides applied at intervals of 14 days or greater in 2006. In 2004 and 2006, significant reductions in DSSv were observed when EcoGuard and TurfShield were alternated with conventional fungicides. The results of the three-year study indicate EcoGuard, TurfShield, and Actinovate SP applied alone or alternated with conventional fungicides or in conjunction with slow-release organic fertilizer are effective for controlling DS.