title: Insecticidal activity and chemical composition of volatile oils from Hyptis martiusii Benth.
abstract: The essential oils from leaves and inflorescences of Hyptis martiusii Benth were analyzed by GC-MS. Twenty-six compounds representing 93.2% of the essential oil of leaves were characterized; Delta-3-carene (22.5%), 1,8-cineole (24.27%), beta-caryophyllene (6.15%), and bicyclogermacrene (6.32%) were found as the major components. In the essential oil of inflorescences 27 compounds representing 87.7% of the oil were identified. The major components were Delta-3-carene (13.5%), alpha-pinene (5.78%), beta-caryophyllene (6.59%), viridiflorene (8.25%), and germacrene B (5.21%). The essential oil of leaves and 1,8-cineole showed pronounced insecticidal effect against Aedes aegypti larvae and Bemisia argentifolii, the vectors of dengue fever and white fly fruit plague, respectively.
authors.affiliation: Curso de Pós-Graduação em Química Orgânica, Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, Caixa Postal 12 200, Fortaleza-CE 60021-940, Brazil.
authors.forename: Edigênia C C
authors.initials: EC
authors.lastname: Araújo
authors.forename: Edilberto R
authors.initials: ER
authors.lastname: Silveira
authors.forename: Mary Anne S
authors.initials: MA
authors.lastname: Lima
authors.forename: Manoel Andrade
authors.initials: MA
authors.lastname: Neto
authors.forename: Israel L
authors.initials: IL
authors.lastname: de Andrade
authors.forename: Marcos Aurélio A
authors.initials: MA
authors.lastname: Lima
authors.forename: Gilvandete M P
authors.initials: GM
authors.lastname: Santiago
authors.forename: Antonio Lindemberg M
authors.initials: AL
authors.lastname: Mesquita
mesh_terms: D000330:Aedes; D000818:Animals; D004175:Diptera; D008401:Gas Chromatography-Mass Spectrometry; D031331:Hyptis / Q000737:chemistry*; D007306:Insecticides / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry
chemical_list: D007306:Insecticides; D009822:Oils, Volatile; D010938:Plant Oils