Seasonal Prevalence of Aedes aegypti Larvae in Agra

Mosquitogenic sites were surveyed from various water collections of Agra City for two years (2009 and 2010). Aedes aegypti population density in Agra City is considerably more in the collected mosquito larval samples. Aedes aegypti larval density was estimated for various months of an year. From April, the larval index starts increasing. The larval density is high from May to July. The maximum Aedes aegypti larval density was noticed during July to October during rainy season. In August, a decline in larval index is noticed. Again larval density increased considerably. Maximum larval density prevailed in the months of September (30.5) and October (24.5) in 2009 and in July (20.7), September (19.9) and October (20.0) in 2010. Prevalence of the maximum larval density of Aedes aegypti in Agra city had a direct impact over the incidence of Dengue cases. In the months of October in 2009 and November in 2010 the larval density again decreased. From December to February, the larval index was considerably low. Avoiding small water collections by careful water management, usage of larvivorous predators and organizing literacy campaigns can be a remedy for vector Aedes aegypti breeding.