Research was initiated on the interaction between trinexapac-ethyl and fungicides used for dollar spot control on creeping bentgrass. Preliminary experiments were conducted on ‘Penncross' creeping bentgrass at both fairway and green height at the Daniel Turfgrass Research and Diagnostic Center in West Lafayette, IN. Two fungicides, chlorothalonil and propiconazole, were selected for this investigation because they represent commonly used contact and acropetal penetrant active ingredients. All treatments were applied to replicated field plots using a custom boom sprayer that delivered a spray volume of 814 L/ha^-1 through three Tee-Jet 8004 flat fan nozzles. Fungicides were applied once at a rate of 8.06 kg a.i./ha^-1 for chlorothalonil and 0.49 kg a.i./ha^-1 at the beginning of each experiment, while trinexapac-ethyl was applied at a rate of 0.39 kg a.i./ha^-1 at 14-day intervals. Results from 2004 showed that post-outbreak (curative) treatments with trinexapac-ethyl and propiconazole resulted in significantly less turf recovery and lower turf quality when compared to propiconazole alone. In the experiments where treatments were applied prior to the dollar spot outbreak (preventative) the trinexapac-ethyl had no effect on disease progress. Research will be repeated in the spring and summer of 2005.