| Summary: | The spotted wing drosophila (<i>Drosophila suzukii</i>) is one of the main invasive pests of small fruits in the world. Thus, 19 essential oils (EOs) were selected to analyze the effects through toxicity and repellency on oviposition and <i>D. suzukii</i> adults. In addition, their lethal and sublethal effects on the pupal endoparasitoid <i>Trichopria anastrephae</i> were evaluated. The EOs of <i>C. flexuosus</i> and <i>Mentha</i> spp. had the highest toxicity observed in the topical application bioassay for <i>D. suzukii</i>. In contrast, the EOs of <i>C. verum</i>, <i>C. citratus</i> QT <i>citratus</i>, and <i>C. winterianus</i> showed the highest toxicity in the ingestion bioassay for <i>D. suzukii</i>. The dry residues of <i>C. verum</i> and <i>C. citratus</i> QT <i>citratus</i> reduced the oviposition of <i>D. suzukii</i>. In the repellency bioassays, the 19 EOs analyzed repelled ≅ 90% of the <i>D. suzukii</i> females. All EOs evaluated using the LC<sub>90</sub> values of the products provided mortality of less than 20% of <i>T. anastrephae</i> adults and did not cause a reduction in the parasitism of surviving <i>T. anastrephae</i> females. We conclude that the EOs evaluated have the potential to be used in the management of <i>D. suzukii</i>. They can also serve as selective active ingredients for the formulation and synthesis of new biopesticides.
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