The Town employs a mosquito control contractor to regularly inspect and if necessary, treat known mosquito breeding areas in salt-marshes and near publicly-owned properties throughout town. These inspections consist of collecting samples of standing water and counting the number of mosquito larvae and pupae present.

Logging Complaints
The Madison Health Department logs complaints from residents of the incidence of heavy mosquito activity in areas throughout town and passes this information on to the contractor.

All of these surveillance activities provide a picture of the abundance of mosquito populations and their life stages, as well as the identification of disease-carrying mosquitoes. This surveillance system allows population reduction activities to be targeted for maximum effect.