Movement of Sterile Melon Flies in Okinawa, Japan

A study on the movement of sterile melon flies (Bactrocera cucurbitae) in Okinawa, Japan, reveals that these insects could rapidly expand their distribution northward through natural flight, potentially aided by wind. The research, conducted between 1972 and 1993, aimed to evaluate the possibility of re-invasion after a successful eradication program. Flies were captured in coastal regions across multiple islands, including Amami-Oshima, Tokunoshima, northern Okinawa Island, and Iriomote Island, during summer, fall, and winter. The findings suggest that once established on an island, melon flies can quickly spread to adjacent areas, posing a risk of re-establishment in previously eradicated regions.

Kohama, T., & Kuba, H. (2020). Movement of Sterile Melon Flies in Okinawa, Japan. Fruit Fly Pests, 415–423. https://doi.org/10.1201/9780367812430-69