From 2000 to 2001, experiments were conducted to determine the effects of foliar application of the bacterial strain Bacillus subtilis OSU-142 on yield, growth and control of shot-hole disease of apricot trees grown in Malatya province of Turkey. In 2000 apricot trees cv. 'Hacihaliloglu' were sprayed with suspensions of the bacterial strain at full bloom, and 30 and 60 days after full bloom stage. Based on results of the first year, the full bloom stage was proven to be the best time for bacterial application. Significant differences were found in yield, shoot development and reduction of shot-hole disease. In 2001 application of bacteria was performed only during the full bloom stage.