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Scientific Reports

28 August 2018

Scientific Reports
© 2018 Springer Nature Limited.
The parasitoid complex of D. suzukii and other fruit feeding Drosophila species in Asia

Abstract

Drosophila suzukii is an invasive fly of East Asian origin that has become a serious fruit pest worldwide. Classical biological control through the introduction of parasitoids from Asia could help reduce populations of D. suzukii in invaded regions. Little is known about the native parasitoids of the fly in Asia. Therefore, surveys for larval parasitoids of D. suzukii were carried out in China and Japan between 2015 and 2017. Parasitoids of D. suzukii and other fruit-inhabiting drosophilids (D. pulchrella and D. subpulchrella) that are probably attacked by the same parasitoid complex were found in four Chinese provinces and four Japanese prefectures. Larval parasitoids were obtained at most sites where D. suzukii was found, with parasitism varying from 0.0 to 75.6%. At least eight parasitoid species were reared. The most abundant and frequent parasitoids were the Figitidae Ganaspis cf. brasiliensis and Leptopilina japonica, but another Leptopilina species and at least five Braconidae species belonging to the genera Areotetes, Asobara and Tanycarpa were obtained in low numbers. Due to its likely restricted host range, the most promising parasitoid for biological control is Ganaspis cf. brasiliensis. However, its exact specificity and taxonomic status require future research.

Girod, P., Borowiec, N., Buffington, M., Chen, G., Fang, Y., Kimura, M.T., Peris-Felipo, F.J., Ris, N., Wu, H., Xiao, C., et al. (2018). The parasitoid complex of D. suzukii and other fruit feeding Drosophila species in Asia. Scientific Reports 8, 11839. DOI: 10.1038/s41598-018-29555-8

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