1. RFP : 기후변화 매개체 방제법 및 방제 시나리오 개발

2. 해당분과 : 2-2-3과제

3. 과제명: SFTS 바이러스를 매개하는 작은소참진드기 방제를 위한 살비제/기피제 개발

4. 연구책임자 : 이회선(전북대학교)

[Abstract]

Insecticidal and acaricidal responses of Cinnamomum cassia oils made by organic solvent (OS), steam distillation (SD), and supercritical fluid (SF) and their components were examined in two bioassays (contact and fumigant bioassays) against Plodia interpunctella, Sitophilus oryzae, S. zeamais, Tyrophagus putrescentiae, and Sitotroga cerealella adults. Using the contact or fumigant bioassay against T. putrescentiae adults, OS oil exhibited the strongest toxicities (50% lethal dose [LD50], 2.60 μg/cm² and 1.34 μg/cm³), followed by SF and SD oils. Furthermore, using two bioassays, SD oil against S. oryzae and S. zeamais adults exhibited the strongest toxicities (LD50, 102.25 μg/cm² and 68.62 μg/cm³, 102.03 μg/cm² and 57.59 μg/cm³), followed by SF and OS oils. Using the fumigant bioassay against S. cerealella and P. interpunctella adults, OS oil exhibited the strongest toxicities (LD50, 1.17 μg/cm³ and 0.79 μg/cm³) followed by SF and SD oils. Cinnamaldehyde, cinnamyl acetate, and coumarin against T. putrescentiae adults showed no significant differences in the contact bioassay, but in the fumigant bioassay, cinnamaldehyde exhibited the highest toxicity (LD50, 0.91 μg/cm³) followed by cinnamyl acetate and coumarin. Against S. oryzae, S. zeamais, S. cerealella, and P. interpunctella adults, cinnamaldehyde using two bioassays exhibited the most potent toxicities (LD50, 108.81 μg/cm² and 77.80 μg/cm³, 104.72 μg/cm² and 36.48 μg/cm³, 0.57 μg/cm² and 2.29 μg/cm³), followed by coumarin and cinnamyl acetate in order. The results showed that cinnamaldehyde and the C. cassia oils could be effective values in the management of stored product pests.