The mosquito control program of the Tennessee Valley Authority (TVA) spans a period of nearly 5 decades, beginning in 1933 when TVA was established. Mosquito control is an integral part of the management of TVA reservoirs for flood control, navigation. power production, recreation, fish and wildlife, water quality protection, and shoreline development and protection. The keystone of the mosquito control program is water level management, which is augmented by reservoir preparation and maintenance, aquatic weed control, and other environmental management measures to minimize the need for use of insecticides. Included in the program were major diking-and-dewatering installations and large-scale shoreline filling-and deepening projects which continue to provide mosquito control benefits. In this review of experience, emphasis is upon evaluations of long-term effectiveness of various components to the program and their continued usefulness. The discussion of current trends, and developments includes mosquito control on TVA reservoirs and floodplains, and the recently inaugurated program of demonstrations and technical assistance in the development of community mosquito control programs in the region.