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Molecules 2009, 14(5), 1938-1947; doi:10.3390/molecules14051938
Article

Efficacy of Essential Oils from Edible Plants as Insecticides Against the House Fly, Musca Domestica L.

1,* , 1
,
1
,
2
 and
2
1 Laboratory of Fine Chemicals and Natural Products, Faculty of Chemical Sciences. Catholic University of Córdoba, Camino a Alta Gracia Km 10, (5000) Córdoba, Argentina 2 Facultad de Química y Biología, Universidad de Santiago de Chile, Casilla 40, Correo 33, Santiago, Chile
* Author to whom correspondence should be addressed.
Received: 14 April 2009 / Revised: 15 May 2009 / Accepted: 18 May 2009 / Published: 25 May 2009
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Abstract

The compositions of 12 essential oils (EOs) obtained by hydrodistillation of edible fruits and herbs were analyzed by gas chromatography/mass spectroscopy (GC/MS). The insecticidal activity of each oil against the house fly Musca domestica was evaluated by placing flies in a glass jar with a screw cap that held a piece of EO-treated cotton yarn. The dose necessary to kill 50% of flies (LC50) in 30 min was determined at 26 ± 1°C. Twelve EOs and 17 individual terpenes were assayed against M. domestica, showing LC50 values ranging from 3.9 to 85.2 and from 3.3 to >100 mg/dm3, respectively. EO from Citrus sinensis was the most potent insecticide (LC50 = 3.9 mg/dm3), followed by EOs from C. aurantium (LC50 = 4.8 mg/dm3) and Eucalyptus cinerea (LC50 = 5.5 mg/dm3). According to GC/MS analysis, limonene (92.47%), linalool (1.43%), and b-myrcene (0.88%) were the principal components of C. sinensis EO. Limonene was also the principal constituent (94.07%) of C. aurantium, while 1,8-cineole (56.86%) was the major constituent of E. cinerea EO. 1,8-Cineole was most active against M. domestica (LC50 = 3.3 mg/dm3), while (4R)(+)-limonene, was moderately active (LC50 = 6.2 mg/dm3). Dimethyl 2,2-dichlorovinyl phosphate (DDVP) selected as a positive control, showed an LC50 of 0.5 mg/dm3. EOs from C. sinensis, C. aurantium, and E. cinerea show promise as natural insecticides against houseflies.
Keywords: Musca domestica; natural insecticide; essential oils; Citrus sinensis; Eucalyptus cinerea Musca domestica; natural insecticide; essential oils; Citrus sinensis; Eucalyptus cinerea
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Palacios, S.M.; Bertoni, A.; Rossi, Y.; Santander, R.; Urzúa, A. Efficacy of Essential Oils from Edible Plants as Insecticides Against the House Fly, Musca Domestica L.. Molecules 2009, 14, 1938-1947.

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