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

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


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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Biological Products / chemistry
  • Colombia
  • Conservation of Natural Resources
  • Cymbopogon / chemistry*
  • Cymbopogon / growth & development*
  • Edible Grain
  • Eucalyptus / chemistry*
  • Eucalyptus / growth & development*
  • Food Handling
  • Insecticides* / chemistry
  • Oils, Volatile* / chemistry
  • Pest Control, Biological / methods*
  • Tribolium*
  • Volatilization


  • Biological Products
  • Insecticides
  • Oils, Volatile