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Westerly To Apply Mosquito Larvicide To Chapman Swamp This Friday

PROVIDENCE - The Rhode Island Department of Environmental Management (DEM) today announced the Town of Westerly will begin aerial application of mosquito larvicide across 500 acres of Chapman Swamp and nearby swamplands on Friday, April 27. Spraying will take place between 8:00 a.m. 2:00 p.m.; rain date is Monday, April 30.

Bti, a naturally-occurring bacterium applied in granular form to control mosquito breeding in swamps and other breeding habitats, will be applied. It is an environmentally friendly product and does not pose a risk to human health. Larviciding is recommended as part of the state's action plan for West Nile Virus and Eastern Equine Encephalitis (EEE) and considered an effective strategy to reduce mosquito populations and related disease risk.

In most communities, the state recommends applying larvicide by hand to roadside catch basins. In the Chapman Swamp area, aerial application is recommended given the area's remote location and large footprint. Mosquitoes carrying the EEE virus were found in Chapman Swamp in 1996 and 2003. Since 1997, the Town has applied Bti to Chapman Swamp to help control mosquito breeding. Additional dates for spraying may be scheduled by the Town; the targeted areas include portions of Chapman Swamp and swampland adjacent to Hespar Drive.

For mosquito prevention tips, visit the Rhode Island Department of Health's website at http://www.health.ri.gov/mosquito. For more information about DEM divisions and programs, visit www.dem.ri.gov. Follow us on Facebook at www.facebook.com/RhodeIslandDEM or on Twitter (@RhodeIslandDEM) for timely updates.

Related links

  • Department or agency: Department of Environmental Management
  • Online: http://www.dem.ri.gov/
  • Release date: 04-25-2018

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