DSCC to use frogs to kill mosquitoes Dhaka South City Corporation (DSCC) has started releasing frogs in Dhaka water bodies to kill mosquitoes. Tens of thousands of frogs have been released in ten water bodies as an experimental project. But the people concerned have expressed doubts about the survival of frog larvae in the polluted water of Dhaka.
Why plan to release frog?
Mosquito breeding has been on the rise for the past few years. According to a study published in February this year, the density of mosquitoes in Dhaka has increased four times compared to last year. Over the past few years, two city corporations in Dhaka have been seen taking various innovative steps to kill mosquitoes. But earlier in 2016, DSCC released guppy fish larvae in the sewers of Dhaka but there is no update whether the guppies are still alive or not. In 2020, tilapia and ducks were released in three water bodies in Dhaka. Some of the ducks have died. As a result, plans were made to release frogs to kill mosquitoes biologically. ABM Amin Ullah Noori, CEO of Dhaka South City Corporation, said, "The frog fres have been released into the pond. We hope that in the next few months, the larvae will turn into full-grown frogs and start eating mosquito larvae." He said larvae have been collected from different parts of the country.
Ways to control mosquitoes
City corporations usually kill mosquitoes in four main ways. Destroys the source of mosquito birth, biologically eliminates larvae from any other animal, sprays drugs and fumes with fogger machines. The biological method is to arrange for the movement of other animals in different closed water bodies including canals, reservoirs and drains. So that if mosquitoes and their larvae are added to the diet of those animals that feed on small insects, mosquitoes will not be able to reproduce. As a result, mosquitoes will be killed in a natural way. Mosquitoes breed rapidly in these places as there is not much water flow in the closed water bodies. There are 10 government water bodies in the south of Dhaka, all of which have been cleared of frogs. If successful in this activity, the frogs will be released in the private water bodies later.
Doubt about the life of a frog?
Kabirul Bashar, a teacher in the Department of Zoology at Jahangirnagar University, said, "Anything can be done experimentally. But as a researcher, I think the water in Dhaka city is very polluted. It should not survive frog larvae. There are questions about that. " He said that long-term planning for effective mosquito eradication can be fruitful.
