Oriental fruit fly, also called small citrus fruit fly, is a worldwide quarantine pest. Oriental fruit fly does a lot of damage to guava, mango, carambola, rose apple, and pomelo. Oriental fruit fly has distributed in Guangdong, Guangxi, Hunan, Guizhou, Fujian, Hainan, Yunnan, Sichuan, Taiwan and other provinces in China.

    Once suffered from the oriental fruit fly, fruits will drop out or lost nutritional and economical worth. In the regions of outbreaks, the fly can cause huge (sometimes up to 80%) yield loss.

    The Wolbaki Institue for Biological Studies is committed to control the wild fly population by employing a sterile insect technique (SIT), which can destroy there productive capacity of oriental fruit fly after a pupal X-ray irradiation treatment.Once the sterile male adults released in orchadmate with the wild females, there will be no offspring hatched from the stunted eggs. The wild population can be controlled and eliminated through repeating releasing thesterile males.