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Chilean Journal of Agricultural Research
Instituto de Investigaciones Agropecuarias, INIA
ISSN: 0718-5820
EISSN: 0718-5839
Vol. 71, No. 3, 2011, pp. 406-411
Bioline Code: cj11050
Full paper language: English
Document type: Research Article
Document available free of charge

Chilean Journal of Agricultural Research, Vol. 71, No. 3, 2011, pp. 406-411

 en INSECTICIDAL ACTIVITY OF THE ESSENTIAL OIL ISOLATED FROM Azilia eryngioides check for this species in other resources (PAU) HEDGE ET LAMOND AGAINST TWO BEETLE PESTS
Ebadollahi, Asgar & Mahboubi, Mohaddese

Abstract

A large number of plant essential oils have been used against diverse insect pests since they, unlike conventional pesticides, present no risk to humans and the environment. This study was conducted to determine the toxicity of Azilia eryngioides check for this species in other resources (Pau) Hedge et Lamond (Apiaceae) essential oil against 1- to 7-d-old Sitophilus granarius check for this species in other resources (L.) (Curculionidae) and Tribolium castaneum check for this species in other resources (Herbst) (Tenebrionidae) adults. The essential oil was obtained from aerial parts of the plant using a Clevenger apparatus and analyzed by gas chromatography and mass spectrometry. The major constituents of the oil were α-Pinene and bornyl acetate. Fumigation bioassays revealed that A. eryngioides oil had a strong insecticidal activity on adult test insects that were exposed to 37.03, 74.07, 111.11, and 148.14 μL L-1 to estimate mean lethal time (LT50) values. Mortality increased as concentration and exposure time increased, and reached 100% at the 39-h exposure time and concentrations higher than 111.11 μL L-1. Another experiment was designed to determine the mean lethal concentration at the 24-h exposure time (LC50)-, and these values indicated that S. granarius was more susceptible than T. castaneum. It can be concluded that the essential oil of A. eryngioides has potential against two stored-product pests, S. granarius and T. castaneum.

Keywords
Botanical insecticide, Apiaceae, fumigant toxicity, Sitophilus granarius, Tribolium castaneum

 
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