Essential oils from 22 plant species were tested for their insecticidal activities against spotted wing drosophila (SWD), Drosophila suzukii Matsumura, using fumigation and contact bioassay. Responses varied with the essential oils, their constituents and concentrations. Strong fumigation activities were observed from the essential oils of wintergreen (Gaultheria fragrantissima), croton (Croton anisatum) and star anise (Illicium verum). Strong contact activities were observed in the essential oils of oriental sweetgum (Liquidambar orientalis), cassia (Cinnamomum cassia), damask rose (Rosa damascena) and sandalwood (Santalum album). The compositions of these selected essential oils were identified using gas chromatographymass spectrophotometer. The compounds identified were tested individually for their insecticidal activities against SWD. Responses varied by doses for each compound. The results showed that natural materials are as effective as synthetic pesticides.

• Miyeon Jang(Division of Applied Life Sciences (BK21+))
• Junheon Kim(Institute of Agriculture and Life Science, Gyeongsang National University)
• Eunsik Shin(Division of Applied Life Sciences (BK21+))
• Chung Gyoo Park(Division of Applied Life Sciences (BK21+), Institute of Agriculture and Life Science, Gyeongsang National University)