Field experiments were conducted in 1997 to evaluate defoliation, desiccation, boll opening, and regrowth inhibition with Finish (ethephon + cyclanalide) and Prep (ethephon) when applied alone or in combination with Folex (tributyl phosphorotrithioate) or Dropp (thidazuron). Finish and Prep were applied at a rate of 1.0 lb ai/ A, alone, tank mixed with Folex (0.25 lb ai/A) or Dropp (0.05 lb ai/A), or followed by Folex (0.25 lb ai/A). Treatments were arranged in a randomized complete block design with 4 replications. Applications were made with a high-cycle sprayer at a carrier volume of 15 gal/A.