Question

Explain methods of prevention of malaria.

Answer 1

Methods of preventing malaria are:

(i) Use of insect repellants to prevent mosquito bite.

(ii) Wire-gauzing of "doors, windows and ventilators to check the entry of mosquitoes into the houses.

(iii) A periodic spray of insecticides (e.g., D.D.T. and B.H.C) to kill adult mosquitoes as well as a spray of kerosene oil or insecticides on ponds, ditches etc. to kill the larvae.

(iv) Introducing larvivorous fishes (e.g., Gambusia, minnows, trouts) in water bodies. These fishes feed on mosquito larvae.