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Tropical Journal of Pharmaceutical Research
Pharmacotherapy Group, Faculty of Pharmacy, University of Benin, Benin City, Nigeria
ISSN: 1596-5996
EISSN: 1596-5996
Vol. 13, No. 4, 2014, pp. 587-592
Bioline Code: pr14084
Full paper language: English
Document type: Research Article
Document available free of charge

Tropical Journal of Pharmaceutical Research, Vol. 13, No. 4, 2014, pp. 587-592

 en Chemical Composition and Insecticidal Activity of Essential Oil of Artemisia frigida check for this species in other resources Willd(Compositae) against Two Grain Storage Insects
Liu, Xin Chao; Li, Yonglan; Wang, Tiejuan; Wang, Qing & Liu, Zhi Long

Abstract

Purpose: To investigate the chemical composition and insecticidal activity of the essential oil of the aerial parts of Artemisia frigida check for this species in other resources against maize weevils ( Sitophilus zeamais check for this species in other resources ) and booklice ( Liposcelis bostrychophila check for this species in other resources ).
Methods: Steam distillation of A. frigida aerial parts was carried out in a Clavenger apparatus to extract its volatile oil content. Gas chromatography/mass spectrometric (GC/MS) analyses (HP-5MS column) of the essential oil were performed and its contact toxicity was determined using topical application and filter paper impregnation technique while its fumigant toxicity was evaluated using sealed-space method.
Results: A total of 32 components of the essential oil were identified. The principal compounds were cis-ρ-menth-2-en-1-ol (20.8%), 1,8-cineole (12.0%), borneol (10.2%), lavandulol (9.3%), camphor (6.9%), and bicyclogermacrene (5.5%). The oil exhibited contact toxicity against adult S. zeamais and L. bostrychophila with LC50 value of 17.97 μg/adult and 254.38 μg/cm2, respectively. The essential oils also possessed fumigant toxicity against S. zeamais and L. bostrychophila with LC50 value of 69.46 mg/L and 1.25 mg/L air.
Conclusion: The study indicates that the essential oil of A. frigida has a potential to be developed to a natural fumigant/insecticide for the control of grain storage insects.

Keywords
Artemisia frigida; Sitophilus zeamais; Liposcelis bostrychophila; Insecticidal activity; Essential oil; Cis-ρ-Menth-2-en-1-ol; 1,8-Cineole

 
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