West Nile Mosquito Monitoring in DuPage Forest Preserves
The Forest Preserve District of DuPage County holds the health of citizens and forest preserve visitors in high regard. It monitors mosquito-breeding areas and uses larvacide treatments to protect against West Nile virus.
The District focuses on areas that could become breeding grounds for the Culex mosquito, a drought-driven species. District employees continually drain water from trash bins, clogged gutters, truck beds and other containers. They also monitor sites for the presence of Culex. If they find Culex larvae, they treat the sites with a biologically derived mosquito larvicide that kills the insects but does not harm the surrounding environment. Employees also routinely use larvicide in stormwater catch basins in forest preserve parking lots.