Citronella oil is one of the essential oils obtained from the leaves and stems of different species of Lemongrass. The oil is used extensively as a source of perfumery chemicals such as citronellal, citronellol. These chemicals find extensive use in soap, candles and incense, perfumery, cosmetics and flavoring industries around the world. Citronella Oil also acts as insect repellent and thus in bug sprays and candles that keep away mosquitoes and other insects.