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Artículo

Insecticidal activity of individual and mixed monoterpenoids of geranium essential oil against pediculus humanus capitis (Phthiraptera: Pediculidae)

Gallardo, Anabella BeatrizIcon ; Picollo, Maria InesIcon ; Gonzalez Audino, Paola AndreaIcon ; Mougabure Cueto, Gastón AdolfoIcon
Fecha de publicación: 03/2012
Editorial: Oxford University Press
Revista: Journal of Medical Entomology
ISSN: 0022-2585
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Zoología, Ornitología, Entomología, Etología

Resumen

The major components of geranium (Geranium maculatum L.) oil and their mixtures were tested against female Pediculus humanus capitis De Geer (Phthiraptera: Pediculidae). Chemical analysis by gas chromatography coupled to mass spectrometry revealed four major constituents: citronellol (38%), geraniol (16%), citronellyl formate (10.4%), and linalool (6.45%) (concentration expressed as percentage of total). Topical application demonstrated that the most potent component was citronellol and geraniol, with LD 50 values 9.7 and 12.7 μg/insect, respectively. Linalool and Citronellyl formate were less toxic with LD 50 values 24.7 and 38.5 μg/insect, respectively. Toxicity of these four major constituents in the same proportion as the natural oil, was greater than whole oil and each individual component. Removal of any four constituents produced a decreased in effectiveness. The absence of citronellol caused the greatest decrease in toxicity (DL 50 from 2.2 to 10.9 μg/insect), leading us to conclude that this constituent is the major contributor to oil toxicity. The knowledge of the role of each constituent in the toxicity of the whole oil gives the possibility to create artificial blends of different constituents for the development of more effective control agents.
Palabras clave: Artificial Mixture , Geranium Maculatum , Geranium Oil , Head Lice , Synergism
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/81834
DOI: http://dx.doi.org/10.1603/ME11142
URL: https://academic.oup.com/jme/article/49/2/332/905778
Colecciones
Articulos(UNIDEF)
Articulos de UNIDAD DE INVESTIGACION Y DESARROLLO ESTRATEGICOS PARA LA DEFENSA
Citación
Gallardo, Anabella Beatriz; Picollo, Maria Ines; Gonzalez Audino, Paola Andrea; Mougabure Cueto, Gastón Adolfo; Insecticidal activity of individual and mixed monoterpenoids of geranium essential oil against pediculus humanus capitis (Phthiraptera: Pediculidae); Oxford University Press; Journal of Medical Entomology; 49; 2; 3-2012; 332-335
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