JZ and RKZ were obtained from the Xigaze area of Tibet; NQ and LM from Nagqu County and DX from the Damxung County, Tibet. The uppercase letters combined with numbers stand for the strain number. The concentration of washed Tibetan yeast suspension in- cubated into wounds on pear fruits was 1×109 cells/ml. The pathogen conidial suspension was added into wounds at 1×104 spores/ml. Results are presented as mean±standard deviation (SD) (n=3). In the two columns of inhibition rates, mean values followed by different letters are statistically different at P