title: 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)).
  
  
  CONCLUSIONS
  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.
authors.affiliation: Environmental and Computational Chemistry Group, Department of Chemistry, Campus of Zaragocilla, University of Cartagena, Cartagena, Colombia. joliverov@unicartagena.edu.co
authors.forename: Jesús
authors.initials: J
authors.lastname: Olivero-Verbel
authors.forename: Luz S
authors.initials: LS
authors.lastname: Nerio
authors.forename: Elena E
authors.initials: EE
authors.lastname: Stashenko
mesh_terms: D000818:Animals; D001688:Biological Products / Q000737:chemistry; D003105:Colombia; D003247:Conservation of Natural Resources; D031743:Cymbopogon / Q000737:chemistry* / Q000254:growth & development*; D002523:Edible Grain; D005052:Eucalyptus / Q000737:chemistry* / Q000254:growth & development*; D005511:Food Handling; D007306:Insecticides / Q000737:chemistry; D009822:Oils, Volatile / Q000737:chemistry; D010572:Pest Control, Biological / Q000379:methods*; D014231:Tribolium; D014835:Volatilization
chemical_list: D001688:Biological Products; D007306:Insecticides; D009822:Oils, Volatile