The Williams County Vector Control District plans to conduct three separate adulticide treatments between 6/10/25-6/17/25 across the County.
Citywide aerial adulticide missions in Williston and Grenora area using Imperium will begin as early as the afternoon of 6/11/25. Ground adulticide mission in Trenton/ Trenton Park area using DeltaGard will begin as early as the night of 6/10/25.
For safety and effectiveness, missions will be rescheduled if conditions are not conducive.
Residents are reminded to please stay at least 300 feet away from a Vector Control truck while it is fogging.
WCVCD products are approved for use by the Environmental Protection Agency (EPA).
For more information, please visit www.williamsnd.com/department/vector-control