CHILLICOTHE, Ohio — The Ross County Health District (RCHD) will conduct mosquito spraying on September 3, 2025, after 8:00 p.m., following the detection of West Nile Virus (WNV) in mosquito traps across the county. The spraying, targeting adult mosquitoes, will cover Concord, Green, Harrison, Huntington, Springfield, and Union Townships, as well as parts of Wards 3, 4, 5, and 6 in Chillicothe. If rain or high winds interfere, the operation will be rescheduled for September 9, 2025.

The decision comes after mosquito pools from Concord and Green Townships and Chillicothe tested positive for WNV, marking the first such cases in Ross County this season. The confirmation was received by RCHD’s Director of Environmental Health, Kelly Spindler, and Health Commissioner Janelle McManis. While no h

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