Culex mosquito density in the capital is four times higher this year than 2020, unveiled a study conducted by Jahangirnagar University.
Professor Kabirul Bashar of zoology department of the university unveiled the report on Thursday.
He said that they had monitored mosquito density at six neighbourhoods of the capital — Jatrabari, Shakharibazar, Mohammadpur, Paribagh, Khilgaon and Uttara — to monitor mosquito situation throughout 12 months of the year.
‘Very alarmingly, we found 50-60 mosquito larvae per deep — which is four times higher than 15 larvae that we had found per deep at the same time last year,’ he told New Age.
If the authorities concerned did not take pragmatic action in time, the situation might turn more fatal in March, he warned.
He said that mosquito density was increasing gradually from December, when they found 35-40 larvae per-deep and 45-50 in January.
Residents of different areas in Dhaka also said that the increased amount of mosquitoes had brought on much misery for them.
They also said that mosquito menace was becoming dangerous as temperature was on the rise.
Mirpur’s Ahmednagar resident Jewel Hossain said that mosquitoes were biting them even during daytime.
Dhaka South City Corporation mayor Sheikh Fazle Noor Taposh on Thursday said that he had ensured quality of mosquito killing insecticide but could not reach all mosquito breeding spots.
‘We are again changing insecticide to effectively solve the problem of culex,’ he said.
Dhaka North City Corporation public relation officer ASM Mamun said that the corporation had continued its battle against culex starting from February 20.
He said that in past five days of their drive against mosquitos, they had identified some breeding spots and destroyed them and fined errant house owners for creating favourable environment for breeding mosquitos.
‘Our drive will continue till February 28,’ he said.
Culex mosquitos are frequent in Dhaka in winter and the bites of the infected culex could spread serious diseases like filariasis, Japanese encephalitis and West Nile virus, said entomologists and virologists.
Though these diseases are not frequent in the capital, culex, the vector of the diseases, may spread them from the infected travelers coming from other countries to Dhaka, they said.
Professor Kabirual suggested to the city authority to launch special crash programme soon for immediate management of mosquito menace.
The city corporations should have integrated vector management policy and follow it throughout the year, he added.
‘Environmental and chemical management along with public awareness are needed to combat mosquito menace,’ he said.
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