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

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.

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  • Publisher Full Text
  • Authors

    Olivero-Verbel J, Nerio LS, Stashenko EE

    Source

    Pest management science 66:6 2010 Jun pg 664-8

    MeSH

    Animals
    Biological Products
    Cereals
    Colombia
    Conservation of Natural Resources
    Cymbopogon
    Eucalyptus
    Food Handling
    Insecticides
    Oils, Volatile
    Pest Control, Biological
    Tribolium
    Volatilization

    Pub Type(s)

    Journal Article
    Research Support, Non-U.S. Gov't

    Language

    eng

    PubMed ID

    20205230