The necessity of malaria eradication needs no emphasis, as it is one of the top national problems. The Federal Government have evolved a Malaria Control Programme spread over three years, from 1980-1983, costing Rs.I98.23 Million, including a foreign exchange component of Rs.116.45 Million (Pakistan Times dated 8th October, 1980). Different devices have been attempted to get rid of the mosquito menace. The use of larvacidal fish for destruction of larvae and pupae of mosquito has proved helpful in the biological control of Malaria. Co.isa lalius (Ham.) and Ambassis baculis (Ham.) are strongly recommended for this purpose.