Inspect your property after a rainfall. Fill holes that hold water or correct drainage problems. Don't forget to fill holes in tree stumps with concrete or other patching compound. Funds are distributed to the Counties for West Nile Virus detection and control. Control of mosquitoes on public property is carried out through a contractor hired by the County.
Homeowners are responsible for elimination of problems on their own property.
The Lower Merion Township Health Department sends dead crows, blue jays, and birds of prey via the County to the Pennsylvania Department of Health Laboratory for testing for the West Nile Virus. Health Department staff investigates complaints by citizens on potential mosquito breeding areas. If mosquitoes are found on private property, the Health Department will assist the homeowner in determining the source of the problem and make recommendations for permanent correction. The Health Department will treat any infestation of mosquito larvae found on the initial visit, but further action is the responsibility of the homeowner. Township storm drains and catch basins are treated for mosquito larvae several times per season by a contractor hired by the County.