Abstract: 【Aim】 This study aims to determine the ability of migration and dispersal of adults of the ber fruit fly, Carpomya vesuviana Costa and the impact of the relevant factors on their flight capability.【Methods】 The flight capability differences between female and male adults of C. vesuviana at different ages as well as the impact of temperature on the flight capacity were studied by a flight mill. 【Results】 The 12 day-old adults of C. vesuviana had the strongest flight capacity. The average flight distance and maximum flight distance of the females were 1.037 and 3.192 km, respectively, while those of the males were 0.943 and 3.085 km, respectively. The flight capacity of C. vesuviana adults firstly increased and then decreased with adult age. The average flight distance and average accumulated flight time of the same day-old female adults were slightly higher than those of the male adults. There were no significant differences in the average flight distance, the average flight speed and the average flight time between the females and the males. The temperature ranging from 28 to 34℃ was suitable for flight, while 31℃ was the most optimal for flight. 【Conclusion】 The results suggest that C. vesuviana adults have fairly strong potential of migration and dispersal.

Key words:  Carpomya vesuviana, day-old age, temperature, gender, flight capacity, tethered flight, flight mill