Portsmouth Mosquito Control and West Nile Virus Program

August 1, 2017

Portsmouth has a dual-purpose mosquito control program, addressing both "nuisance" mosquitoes and mosquitoes of public health importance. 34% of Portsmouth is wetlands, where mosquitoes breed and develop. Additionally, since Portsmouth is a seacoast community with flat topography, numerous additional temporary, stagnant, shallow water areas develop due to snow melt and rain, adding to mosquito breeding areas. Without mosquito control to reduce the number, there would be many areas that would be inundated with biting mosquitoes. Although different species may also be found to be carrying dangerous diseases, the same mosquito control components useful for nuisance mosquitoes can quickly be directed at controlling disease carrying mosquitoes. Portsmouth also has an older population which is generally more susceptible to mosquito borne diseases.