Adult Mosquito Spray CalendarJuly 2025SunMonTueWedThuFriSat29301Ground Based (Truck) Spraying for Adult Mosquitoes; Benton City and West Richland2Ground Based (Truck) Spraying for Adult Mosquitoes; Prosser and Grandview34567Aerial (plane) Spraying for Adult Mosquitoes; Grandview, Prosser, and West Richland8910Ground Based (Truck) Spraying for Adult Mosquitoes; Richland and West Richland11121314151617Ground Based (Truck) Spraying for Adult Mosquitoes; Richland and West Richland181920212223242526272829303112