Single and multiple sprays of uniconazole at 0, 5, 10, or 20 mgliter-1 were compared with daminozide sprays at 2500 mgliter-1 applied twice for height control of
Dendranthema grandiflorum(Ramat.) Kitamura (Chrysanthemum morifoliumRamat.) `Puritan' and `Favor'. A single uniconazole spray at 20 mgliter-1 applied 2 weeks after pinching or two uniconazole applications at 10 mgliter-1 applied 2 and 4 weeks after pinching were as effective as daminozide for reducing height. Drenches of uniconazole at 0, 0.025, 0.05, or 0.10 mg a.i./pot were compared with ancymidol drenches at 0.45 mg a.i./pot for controlling height of `Bright Golden Anne'. Although ancymidol was more effective, a 0.10-mg uniconazole drench adequately reduced height.