A repellent composition for insect vectors of tropical diseases in the form of a spray, that includes microcapsules with a core coated membrane, an aforesaid core containing repellent active repellent ingredients that includes lavandin essential oil and p-menthane-3,8-diol； a binding agent； a wetting agent； and water. A repellent treatment method in which a repellent composition is sprayed onto a part of a textile material.
