Last year, around 5,000 people were infected by dengue in Delhi, which can turn fatal in extreme cases. They work by stopping a larva from maturing into a pupa, and the New Delhi Municipal Corporation and the South Delhi Municipal Corporation have begun using them in recent months in certain areas. When mosquitoes sit on water that has absorbed the insecticide, they carry it to other places,” said BK Hazarika, medical health officer of South Delhi Municipal Corporation. “They are hormonal retardant and hamper the growth of mosquito into adults and ultimately kills them after 3-4 days,” she said. The civic agencies have also started training field officers to ensure that the new medicines are not overused or misused.

Source: Hindustan Times March 19, 2018 04:52 UTC