Abstract
The spotted wing Drosophila, (Drosophila suzukii) native to East Asia, has become an invasive species in Hawaii, USA, since 1980 and has spread globally, affecting economically important crops, such as berries and cherries. The high reproductive rate and polyphagous nature of this species, facilitated by a unique serrated ovipositor, lead to significant crop damage and economic losses. Control measures, including insecticides and biological controls, have limited effectiveness due to frequent re-infestations. Research in Asia identified 3 promising parasitoid species for classical biological control, i.e. Ganaspis brasiliensis, Leptopilina japonica and Asobara japonica. Among them, G. brasiliensis (particularly genetic group G1) shows the highest host specificity to D. suzukii and has been approved for release in several regions. Other parasitoids, such as Trichopria drosophilae and Pachycrepoideus vindemiae, have limited field effectiveness. Classical biological control using specific parasitoids offers a potential solution to reduce D. suzukii populations and mitigate economic damage.
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