Abstract:With the objective of determining the effects of environmental factors on the adult emergence of Bactrocera minax, temperature, soil moisture content, pupae buried depth and the interactions among these three factors were analyzed with respect to the adult emergence characteristics, such as emergence percentage, survival rate, the earliest date of adult appearing, and emergence duration, using orthogonal combination experiment to develop the regression equations of above three factors at different levels. The results showed that among four equations, the partial regression coefficients of temperature were all the highest, which were 19.37, 22.14, 15.88 and 9.63, and the relationships were negative correlated. The adult emergence percentage and survival rate was mainly affected by soil moisture content with the partial regression coefficient of 6.92 and 12.02, and the relationships were also negative correlated. Besides, the positive correlations of the buried depth of pupae with both emergence percentage and survival rate were found with the partial regression coefficient of 2.86 and 1.39. The interactions among these factors mainly affect the adult survival rate. There were additive effects of the interaction between temperature and soil humidity, however, the interaction between temperature × pupae depth and soil humidity × pupae depth were opposite and had antagonistic effects.