Ground Adulticide Mission | Trenton & Williston | WCVCD | 7/8/25

Posted on July 8, 2025


NOTICE ground mosquito treatment

Williams County Vector Control District (WCVCD) plans to conduct a ground spray in Trenton and Williston’s Spray Block 3 after sunset tonight (July 8). The mission will be postponed to a later date if conditions do not allow.

To view the Williston Spray Block map, click here: Spray Block map here: https://arcg.is/1bGqGS1

DeltaGard will be used for this mission as it is approved for residential mosquito control by the Environmental Protection Agency (EPA).

Residents are reminded to please stay at least 300 feet away from a Vector Control truck while it is fogging

For more information about Vector Control, visit: https://www.williamsnd.com/departments/vector-control/.

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