Cotton defoliation studies were conducted at the University of Arkansas Northeast Research and Extension Center in 1997 and 1998 to compare the effectiveness of the Rhone Poulenc product Finish (cyclanilide + ethephon) alone and in combination with defoliant, with a standard and with an untreated check. Temperatures in both years were unseasonably warm. In 1997, significant differences among treatments were observed for defoliation at 4, 9 and 14 days after treatment (DAT) and for open bolls at treatment and at 4, 9 and 14 DAT. In 1998, significant differences among treatments were observed for defoliation at 3, 8 and 13 DAT and for open bolls at 8 and 13 DAT. In both years, the defoliation performance of Finish was enhanced when followed by an application of the defoliant Folex (tribufos). A tank mix of the products did not appear as effective as the separate applications. The rate of Finish application (1.0 – 1.5 lb ethephon/acre) did not strongly affect performance in these tests, although rate would probably be more important with lower temperatures.