News Flash

Town of Narragansett News

Posted on: September 9, 2019

Rhode Island Aerial Mosquito Treatments

UPDATE 9/20/2019


Advisory      Map

With areas of Rhode Island still at critical risk for the EEE virus, parts of 12 communities are expected to be aerially treated with mosquito pesticide next week; possibly as early as Monday, September 23rd. Narragansett is not one of those targeted areas.

Parts of 12 RI communities in two zones will be sprayed early next week. Affected communities in the first zone include:

  • West Warwick
  • Warwick
  • East Greenwich
  • West Greenwich
  • Coventry
  • Scituate
  • Cranston

Communities in the second zone include:

  • Westerly
  • Hopkinton
  • Charlestown
  • Richmond
  • South Kingstown

Spraying depends 100% on the weather and the aviation/pesticide crew currently being used via the state is still finishing up work in Massachusetts. Last night, they had to stop spraying because of cool temperatures. This affects RI’s timing because we’re next in line.

UPDATE: 9/19/2019

DEM and RIDOH are considering the next steps in Rhode Island's EEE response. Those steps look to include additional aerial spraying this weekend based on information about human cases, cases in other mammals, mosquito activity, and findings in neighboring states. Broad and targeted notification will be done in advance of any additional aerial spraying.

The flight plan should be finalized on Friday morning and posted to the RIDEM website 

There is no aerial spraying planned for Narragansett.  No trapped mosquitoes in our area have tested positive for EEE. Thus, we have not been identified as a critical area and are not currently targeted for aerial spraying.

However, RIDOH still encourages personal protection from mosquito bites and smart scheduling of outdoor activities. disease/carriers/mosquitoes/ 


Zone 4 (Westerly, Hopkinton, and Charlestown) is rescheduled for TONIGHT, Tuesday, Sept. 10, weather permitting.  The plane passed over the Westerly area last night but did not spray due to ground fog. Spraying will start at dusk tonight and will be completed by 4:30 am Wednesday morning.

While spraying is occurring, it is best to err on the side of caution and limit time outdoors and keep your windows closed. The product being sprayed is being used at very low concentrations. No adverse health risks are expected with its use for mosquito control. However, it is generally good for people to limit their exposure to pesticides.

Aerial spraying in parts of Burrillville, North Smithfield, and Woonsocket (Zone 3) was completed last night.

The Department of Environmental Management (DEM) and the Rhode Island Department of Health (RIDOH) have announced that the state will continue with aerial mosquito treatments weather permitting.  All spraying will occur in the evening and overnight hours. The application will treat the four areas that the state Mosquito-Borne Disease Advisory Group (MBDAG) has assessed to be at critical risk for the Eastern Equine Encephalitis (EEE) virus.  Narragansett has not been targeted as one of those critical areas based upon state coordinated mosquito trappings and testing.

For more information regarding details on the timing and the flight plan - Visit

Follow RIDEM on Facebook at  or on Twitter (@RhodeIslandDEM) for timely updates.

Visit for additional mosquito prevention tips, videos, and local data.

Flight Area Map        News Release        Rhode Island Department of Health FAQ

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