<prompt> Diethyltoluamide is an effective -LarvicidalAgent againts pupae of anophalesRepellentSpace spray  <response>: Diethyl toluimide deetis an all purpose repellant.They are used for application on skin, and their chief advantage is sho duration of protection.Repellant are contact poisons. They are used as peraonal protective measure against mosquito bite.Other neasure are using mosquito nets and screening. Parks textbook of preventive and social medicine.K Park. Edition 23.Pg no: 773,783 