The major component of Eucalyptus globulus is 1,8-Cineole (Eucalyptol) and has been recognized as a high ovipositional repellent and mild mosquito feeding repellent [8]. Chemical instability, volatility, propensity for oxidation and poor water solubility of essential oils make them inconvenient for extensive use [9]. Cymbopogon winterianus, commonly known as citronella, is native to the tropical and subtropical areas, consisting of citronellol, citronellal, and geraniol as its major compounds [10]. Cymbopogon oil has been proven to exhibit low acute toxicity in laboratory animals [11]. Various studies have evaluated the mosquito repellent activity of citronella oil extracted from Cymbopogon. Consequently, the incorporation of essential oils from Eucalyptus and Cymbopogon leaves have not been extensively investigated. In this study, we aim to extract the essential oil from Eucalyptus and Cymbopogon leaves, grown in southern Viet Nam, and examine the repellent activities of the essential oil against mosquitoes. |
