title: Larvicidal activity against Aedes aegypti of essential oils from northeast Brazil.
abstract: The larvicidal activities of essential oils from the leaves of Artemisia vulgaris L., Cymbopogon flexuosus (Nees ex Steud.) Wats. and Piper tuberculatum Jacq. were evaluated using third-instar larvae of Aedes aegypti. The essential oils were obtained by hydrodistillation and analyzed by GC and GC-MS. The essential oil of P. tuberculqatum had the lowest LC50 value (106.3 +/- 2.2 microg/mL), followed by that of A. vulgaris (114.1 +/- 1.7 microg/mL) and C. flexuosus (121.6 +/- 0.8 micro/mL). The results show that these essential oils may be potent sources of natural larvicides.
authors.affiliation: Departamento de Farmácia, Universidade Federal do Ceará, Rua Capitilo Francisco Pedro 1210, CEP 60430-370, Fortaleza, CE, Brazil.
authors.forename: Patrícia L
authors.initials: PL
authors.lastname: Lavor
authors.forename: Gilvandete M P
authors.initials: GM
authors.lastname: Santiago
authors.forename: Roberto W da Silva
authors.initials: RW
authors.lastname: Gois
authors.forename: Leôncio M
authors.initials: LM
authors.lastname: de Sousa
authors.forename: Gabrieli da P
authors.initials: Gda P
authors.lastname: Bezerra
authors.forename: Nirla R
authors.initials: NR
authors.lastname: Romero
authors.forename: Angela M C
authors.initials: AM
authors.lastname: Arriaga
authors.forename: Telma L G
authors.initials: TL
authors.lastname: Lemos
authors.forename: Péricles B
authors.initials: PB
authors.lastname: Alves
authors.forename: Paulo C S
authors.initials: PC
authors.lastname: Gomes
mesh_terms: D000330:Aedes / Q000502:physiology*; D000818:Animals; D019306:Artemisia / Q000737:chemistry; D001938:Brazil; D031743:Cymbopogon / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D007306:Insecticides / Q000633:toxicity*; D007814:Larva; D007928:Lethal Dose 50; D009822:Oils, Volatile / Q000737:chemistry / Q000633:toxicity*; D031701:Piper / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification / Q000633:toxicity
chemical_list: D007306:Insecticides; D009822:Oils, Volatile; D012717:Sesquiterpenes