During the last 4 years, results obtained in Argentina with FINISH® (60 g Cyclanilide + 480 g Ethephon ai per liter) as boll opener and defoliant in different locations of the Argentinean cotton area, have clearly demonstrated that it performs better and defoliates faster compared with PREP® as boll opener plus DROP 25 defoliant (which is the most common combination used) or with DROP (thidiazuron) alone. FINISH® has also produced a longer regrowth inhibition period and is more independent of temperature.