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Bioactivity against Tribolium castaneum Herbst (Coleoptera: Tenebrionidae) of Cymbopogon citratus and Eucalyptus citriodora essential oils grown in Colombia
Author(s) -
OliveroVerbel Jesús,
Nerio Luz S,
Stashenko Elena E
Publication year - 2010
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.1927
Subject(s) - cymbopogon citratus , citronellol , geraniol , citronellal , essential oil , myrtaceae , insect repellent , eucalyptus , botany , biology , horticulture , chemistry , toxicology , ecology
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. Copyright © 2010 Society of Chemical Industry