Our goal is not to eliminate each and every mosquito; CMAD instead seeks to control them to reduce the likelihood of disease and as nuisance abatement. Rather than blanketing the District with pesticide all the time, we use an Integrated Pest Management (IPM) program consisting of surveillance, larvicide, and adulticide. Our Pesticide Discharge Management Plan (PDMP) has more information on the compounds we use to control mosquitoes.

Source: Fix.com Blog