Sri Lanka, June 29 -- The Association of Health Entomologists has warned that mosquito fumigation alone is not an effective strategy to control dengue and could cause significant environmental damage by killing beneficial insects and contributing to insecticide resistance.

Addressing a media briefing in Colombo today, Association Chairman Najith Sumanasena said many people mistakenly believe fumigation is the primary solution to dengue control. He explained that fumigation targets only adult mosquitoes, while the mosquito's egg, larval and pupal stages remain unaffected.

He said that a single round of fumigation costs more than Rs. 20,000 and also kills beneficial insects such as bees and dragonflies, which play a vital role in pollina...