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Pest Manag Sci. 2010 Jun;66(6):664-8. doi: 10.1002/ps.1927.

Bioactivity against Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) of Cymbopogon citratus and Eucalyptus citriodora essential oils grown in Colombia.

Author information

1
Environmental and Computational Chemistry Group, Department of Chemistry, Campus of Zaragocilla, University of Cartagena, Cartagena, Colombia. joliverov@unicartagena.edu.co

Abstract

BACKGROUND:

Essential oils isolated from Cymbopogon citratus (DC) Stapf. and Eucalyptus citriodora Hook grown in Colombia were analysed by gas chromatography-mass spectrometry (GC-MS) and tested for repellent activity and contact toxicity against Tribolium castaneum (Herbst.) (Coleoptera: Tenebrionidae).

RESULTS:

The main components of C. citratus oil were geranial (34.4%), neral (28.4%) and geraniol (11.5%), whereas those of E. citriodora were citronellal (40%), isopulegol (14.6%) and citronellol (13%). The mean repellent doses after 4 h exposure were 0.021 and 0.084 mL L(-1) for C. citratus and E. citriodora oils respectively-values lower than that observed for the commercial product IR3535 (0.686 mL L(-1)).

CONCLUSION:

These studies showed the composition and repellent activity of essential oils of C. citratus and E. citriodora, suggesting that these are potential candidates as insect repellents.

PMID:
20205230
DOI:
10.1002/ps.1927
[Indexed for MEDLINE]

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