title: The effects of herbal essential oils on the oviposition-deterrent and ovicidal activities of Aedes aegypti (Linn.), Anopheles dirus (Peyton and Harrison) and Culex quinquefasciatus (Say).
abstract: The effect of oviposition-deterrent and ovicidal of seven essential oils were   evaluated towards three mosquito vectors, Aedes aegypti, Anopheles dirus and Culex   quinquefasciatus. The oviposition activity index (OAI) values of six essential oils namely   Cananga odorata, Cymbopogon citratus, Cymbopogon nardus, Eucalyptus citriodora,   Ocimum basilicum and Syzygium aromaticum indicated that there were more deterrent   than the control whereas Citrus sinensis oil acted as oviposition attractant. At higher   concentration (10%) of Ca. odorata (ylang ylang flowers) showed high percent effective   repellency (ER) against oviposition at 99.4% to Ae. aegypti, 97.1% to An. dirus and 100% to Cx.   quinquefasciatus, respectively. The results showed that mean numbers of eggs were lower   in treated than in untreated water. In addition, there was an inverse relationship between   essential oil concentrations and ovicidal activity. As the concentration of essential oil increased   from 1%, 5% and up to 10% conc., the hatching rate decreased. The essential oil of Ca. odorata   at 10% conc. gave minimum egg hatch of 10.4% (for Ae. aegypti), 0.8% (for An. dirus) and 1.1%   (for Cx. quinquefasciatus) respectively. These results clearly revealed that the essential oil   of Ca. odorata served as a potential oviposition-deterrent and ovicidal activity against Ae.   aegypti, An. dirus and Cx. quinquefasciatus.
authors.affiliation: Entomology and Environment Program, Plant Production Technology Section, Faculty of Agricultural Technology, King Mongkut's Institute of Technology Ladkrabang, Chalong Krung Road, Ladkrabang, Bangkok 10520, Thailand. msiriporn@hotmail.com
authors.forename: P
authors.initials: P
authors.lastname: Siriporn
authors.forename: S
authors.initials: S
authors.lastname: Mayura
mesh_terms: D000330:Aedes / Q000187:drug effects*; D000818:Animals; D000852:Anopheles / Q000187:drug effects*; D003465:Culex / Q000187:drug effects*; D005260:Female; D029001:Herbal Medicine; D007302:Insect Repellents / Q000302:isolation & purification / Q000494:pharmacology; D007306:Insecticides / Q000302:isolation & purification / Q000494:pharmacology*; D009822:Oils, Volatile / Q000302:isolation & purification / Q000494:pharmacology*; D010058:Oviposition / Q000187:drug effects*; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D007302:Insect Repellents; D007306:Insecticides; D009822:Oils, Volatile