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The Chesapeake Mosquito Control Commission plans to begin aerial larvicide operations Wednesday, March 1, to decrease the population of immature mosquito larvae. Operations will take place from approximately 6:00 a.m. until 8:00 p.m., for a period of seven days. If weather is not favorable, the mission will be rescheduled and completed when conditions permit.
Kritter Aviation, an experienced contractor, will be conducting the treatment. A liquid mixture of B.t.i. (a natural bacterial spore) and Altosid (an insect growth regulator) will be applied to larval habitats in select areas to prevent the emergence of adult mosquitoes. These insecticides target mosquito larvae, do not affect bees, butterflies or dragonflies, and pose no risk to humans, according to the Environmental Protection Agency. A granular formulation of the same Altosid insect growth regulator will be applied to larval habitats in other areas of the city. Habitats treated include woodland pools, floodwater pools, swamps, and marshes. The treatment will have no effect on backyard container-breeding species.
Residents may notice a low-flying helicopter in areas near wooded and open field portions of the city, including:
- Adjacent to the northeast corner and eastern border of the Great Dismal Swamp
- Areas north and south along the Intracoastal Waterway
- Northeast of the Fentress Airfield
- Various locations in the southern portion of the city
For additional information about the aerial larviciding process and schedule, please contact the Chesapeake Mosquito Control Commission Spray Hotline, at 757-382-3456. Click the following to view a map of the 2017 Mosquito Spraying Map.