We evaluated insecticidal activity of 11 Apiaceae plant essential oils and their constituents against rice weevil, Sitophilus oryzae.. Of 11 Apiaceae plant essential oils tested, dill (Anethum graveolens), carvi (Carum carvi), caraway seed (Carum carvi) and cumin (Cuminum cyminum) essential oils demonstrated strong fumigant toxicity against adults of rice weevil. Components of 4 active compounds were analyzed by GC and GC-MS, and fumigant toxicity of individual compound was also tested. Among test compounds, carvone, dihydrocarvone, carveol, linalool oxide, neral, cuminaldehyde, and anethole demonstrated the strong insecticidal activity. The toxicity of blends of constituents identified in 4 active oils indicated that carvone, and cuminaldehyde were major contributors to the fumigant toxicity of the artificial blend.

• Sung-Woong Kim(Division of Forest Insect Pests and Diseases, Korea Forest Research and Institute)
• Hwa-Jung Yeom(Division of Forest Insect Pests and Diseases, Korea Forest Research and Institute)
• Eunae Kim(Division of Forest Insect Pests and Diseases, Korea Forest Research and Institute)
• Seon-Mi Seo(Division of Forest Insect Pests and Diseases, Korea Forest Research and Institute)
• Il-Kwon Park(Division of Forest Insect Pests and Diseases, Korea Forest Research and Institute)