This study was conducted during the 2004-2005 and 2005-2006 seasons to evaluate the effect of spraying “Le-Conte" pear (budded on Pyrus communis rootstock) trees with defoliation treatments (urea, 7% or zinc sulfate, 3.5%) at 1^st Nov. or 15^th Nov. and dormancy-breaking agents (hydrogen cyanamide, 49%; potassium sulfate or ammonium nitrate) sprayed at 1^st Jan., 15^th Jan. or 1^st Feb. Measurements included vegetative growth (shoot length, number of leaves per shoot and percentage of vegetative spurs), floral growth (percentage of floral spurs and fruit set), fruit yield and its components (number of fruits/tree, fruit yield/tree and yield monetary value/tree) and fruit quality attributes (fruit weight and size as well as juice TSS and acidity). Statistical analysis confirmed that, better results can be obtained as the follows combination of treatments. At 15^th Nov. leaf shedding should spray using ZnSO₄ (3.5%). At the next 15^th Jan., hydrogen cyanamide (49%) should spray on “Le-Conte" pear trees.