PROVIDENCE, RI - The Rhode Island Department of Environmental Management (DEM) is announcing that a licensed contractor, North Fork Helicopters, will conduct an aerial application of mosquito larvicide across 3,000 acres of Chapman Swamp in Westerly and Great Swamp in South Kingstown beginning Thursday, Aug. 29 through Friday, Aug. 30, weather permitting. The application, which consists of pellets that kill mosquito larvae being dropped by a helicopter into the targeted wetlands, will take place between 7 AM and 7 PM. The larvicide applications will not target open bodies of water, and treatment areas do not include Worden Pond in South Kingstown or Chapman Pond in Westerly. In the event of inclement weather, a rain date will be announced. The larvicide used, known as Bti [pvxtjxbbb.cc.rs6.net], [pvxtjxbbb.cc.rs6.net] does not pose a risk to humans or the environment.  See attached press release and maps  map 1    map 2    DEM press release