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Northern Nevada Public Health pauses large‑area helicopter mosquito spraying for 2025; surveillance and targeted treatment continue
Summary
District health officials told the county commission they will suspend large‑area helicopter larvicide flights for the 2025 season because of rising program costs and low local disease incidence, while continuing ground‑level monitoring and targeted responses.
Northern Nevada Public Health informed the Washoe County Board of County Commissioners on May 20 that it will suspend large‑area helicopter larvicide treatments for the 2025 mosquito season and rely on enhanced surveillance, hand‑treatment and targeted interventions instead.
District health officer Dr. Chad Kingsley told the commission that the program change responds to two factors: rising operating costs for helicopter application and larvicide and a low recent incidence of mosquito‑borne disease acquired within the county. He said the district will continue door‑to‑door response to complaints, drone and ground treatments, and ongoing trap‑based surveillance.
Why officials made the change Kingsley said the helicopter contract and associated chemical costs have risen…
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