title: Essential oil composition, adult repellency and larvicidal activity of eight Cupressaceae species from Greece against Aedes albopictus (Diptera: Culicidae).
abstract: The present study evaluated leaf essential oils from eight Cupresaceae species; Cupressus arizonica, Cupressus benthamii, Cupressus macrocarpa, Cupressus sempervirens, Cupressus torulosa, Chamaecyparis lawsoniana, Juniperus phoenicea, and Tetraclinis articulata for their larvicidal and repellent properties against Aedes albopictus, a mosquito of great ecological and medical importance. Based on the LC(50) values, C. benthamii essential oil was the most active (LC(50) = 37.5 mg/L) while the other tested Cupressaceae essential oils provided rather moderate toxicity against larvae (LC(50) = 47.9 to 70.6 mg/L). Under the used laboratory conditions, three of the essential oils (C. benthamii, C. lawsoniana, and C. macrocarpa) provided sufficient protection against mosquito adults, equivalent to the standard repellent "Deet" in the 0.2 mg/cm(2) dose, while C. macrocarpa assigned as the superior repellent oil in the 0.08 mg/cm(2) dose. Chemical analysis of the essential oils using gas chromatography and gas chromatography-mass spectrometry revealed the presence of 125 components.
authors.affiliation: Laboratory of Biological Control of Pesticides, Benaki Phytopathological Institute, 8 S. Delta Str. Kifissia, 14561, Athens, Greece.
authors.forename: Athanassios
authors.initials: A
authors.lastname: Giatropoulos
authors.forename: Danae
authors.initials: D
authors.lastname: Pitarokili
authors.forename: Fotini
authors.initials: F
authors.lastname: Papaioannou
authors.forename: Dimitrios P
authors.initials: DP
authors.lastname: Papachristos
authors.forename: George
authors.initials: G
authors.lastname: Koliopoulos
authors.forename: Nickolaos
authors.initials: N
authors.lastname: Emmanouel
authors.forename: Olga
authors.initials: O
authors.lastname: Tzakou
authors.forename: Antonios
authors.initials: A
authors.lastname: Michaelakis
mesh_terms: D000330:Aedes / Q000187:drug effects*; D000818:Animals; D001681:Biological Assay; D029779:Cupressaceae / Q000737:chemistry*; D006115:Greece; D007302:Insect Repellents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D007306:Insecticides / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D007814:Larva / Q000187:drug effects; D009822:Oils, Volatile / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry; D016019:Survival Analysis
chemical_list: D007302:Insect Repellents; D007306:Insecticides; D009822:Oils, Volatile