Citronella oil is steam distilled from the leaves and stems of Cymbopogon plant species, especially Cymbopogon Nardus. Organic Citronella Essential Oil is famous for being a plant-based insect repellent, a bio-pesticide with a non-toxic mode of action, and has been registered for this use in the USA since 1948. Top countries producing this oil are Indonesia and China, which together produce about 40% of the world’s lemongrass essential oil. A holiday "must take item"