Activities of Apiaceae Essential Oils against Armyworm, Pseudaletia unipuncta (Lepidoptera: Noctuidae)

摘要

Essential oils (EOs) from four Apiaceae species and 11 pure compounds were evaluated for their antifeedant, growth inhibitory, and insecticidal activities against Pseudaletia unipuncta (Lepidoptera: Noctuidae) fourth-instar larvae. EOs from Foeniculum vulgare subsp. vulgare var. vulgare, Anethum graveolens, Petroselinum crispum, and Cuminum cyminum were characterized by gas-chromatography (GC) and mass spectrometry. Anti-insect activity varied according to plant specie/ composition, type, and exposure period. EOs from P. crispum and A graveolens fruits, rnms-anethole and cuminaldehyde, exerted acute effects on larvae feeding and growth (FDI and GI > 70%). A graveolens, C. cyminum, and P, vulgare EOs and some of their constituents were effective by fumigation (>80%). Satisfactory contact toxicities (>70%) were observed for five compounds and all EOs, except K vulgare EOs, when tested by the filter paper impregnation method. For the most active EOs/compounds, dose-dependent toxicity was determined and inverse relationships of LCS0 with time were established.