Lemongrass or citronella are members of the herbaceous are used as ingredients for the scent of food.
Lemongrass oil is an essential oil that is obtained by distilling the way the top of the plant.
Lemongrass oil can be used as mosquito repellent (repelen), either in the form of plants or in the form of oil.
Content of Lemongrass, among others, is sitronela, which is not liked by mosquitoes. Thus, the serai can be made into insect repellent and other insects.