title: Activities of Apiaceae essential oils against armyworm, Pseudaletia unipuncta (Lepidoptera: Noctuidae).
abstract: 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, trans-anethole and cuminaldehyde, exerted acute effects on larvae feeding and growth (FDI and GI > 70%). A. graveolens , C. cyminum , and F. 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 F. 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 LC50 with time were established.
authors.affiliation: CITAB, Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Department of Biology, University of Minho , Campus Gualtar, 4710-057 Braga, Portugal.
authors.forename: Rose Marie O F
authors.initials: RM
authors.lastname: Sousa
authors.forename: José S
authors.initials: JS
authors.lastname: Rosa
authors.forename: Luisa
authors.initials: L
authors.lastname: Oliveira
authors.forename: Ana
authors.initials: A
authors.lastname: Cunha
authors.forename: Manuel
authors.initials: M
authors.lastname: Fernandes-Ferreira
mesh_terms: D000818:Animals; D019661:Apiaceae / Q000737:chemistry*; D005651:Fumigation; D007306:Insecticides / Q000737:chemistry / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects / Q000254:growth & development; D007915:Lepidoptera / Q000187:drug effects* / Q000254:growth & development; D009822:Oils, Volatile / Q000737:chemistry / Q000494:pharmacology*; D010938:Plant Oils / Q000737:chemistry / Q000494:pharmacology*
chemical_list: D007306:Insecticides; D009822:Oils, Volatile; D010938:Plant Oils