Mosquito repellant plants should be of paramount importance in the present day in Africa where there is rising number of mosquito borne illnesses. Alarming increase in the range of mosquitoes in Africa is as a result of deforestation, stagnant waters, artificial containers, non-recyclableradial tires,trees holes, water drainage systems, ditches, ponds, lakes, lagoons, marshes, swamps, floodwater sites, dirty environments, industrialized farming/irrigated fields. This paper focuses on the Citronella Mosquito repellent plants, with a special reference to Tubman University environments. The present Citronella mosquito repellant plants were preferred over chemical mosquito repellents. It was observed that Citronella plants serve as retardant of mosquitos' growth where they were planted and also prevent the incidence of malaria among the residents. Mortality of Mosquitos was found to increase proportionately with increase in planted Citronella plants