This work established the temperature range for development and survival of Bactrocera invadens, an alien invasive fruit fly species of Asian origin. The optimal temperature for survival was found to be 25 C while 35 C was the most lethal temperature. The insect infested fourteen plant species particularly mango and citrus and the wild plants marula plum and tropical almond. In host preference studies, mango and banana were found to be the most preferred host plants. The spatial and temporal population dynamics revealed that the relative abundance index (RAI) of mango pests was in the order B. invadens