Adult Mosquito Spray Calendar July 2025 29 30 1Ground Based (Truck) Spraying for Adult Mosquitoes; Benton City and West Richland 2Ground Based (Truck) Spraying for Adult Mosquitoes; Prosser and Grandview 3 4 5 6 7Aerial (plane) Spraying for Adult Mosquitoes; Grandview, Prosser, and West Richland 8 9 10Ground Based (Truck) Spraying for Adult Mosquitoes; Richland and West Richland 11 12 13 14 15 16 17Ground Based (Truck) Spraying for Adult Mosquitoes; Richland and West Richland 18 19 20 21Aerial (plane) Spraying for Adult Mosquitoes; Grandview, Prosser, and Richland 22Ground Based (Truck) Spraying for Adult Mosquitoes; Benton City 23Ground Based (Truck) Spraying for Adult Mosquitoes; Richland 24 25 26 27 28 29 30 31 1 2Aerial (plane) Spraying for Adult Mosquitoes; Grandview, Prosser, and Richland
