Social & Preventive Medicine In malarial eradication programme, the basis of using insecticide is to reduce lifespan of mosquito by less than A 1 day B 3 days C 6 days D 10 days 💡 Explanation In malarial eradication programme, the basis of using insecticide is to reduce lifespan of mosquito by less than ✓ Correct Answer: D. 10 days