Adulticiding is the use of pesticide to control adult mosquitoes. This can be accomplished two ways, either by truck mounted equipment or by aircraft.

When a need is determined through our surveillance program, ground spray trucks will run Tuesday through Friday between 12 a.m.- 6 a.m. The pesticides used are Duet and Zenivex E4, delivered as an aerosol, and distributed at an average of 1.5 ounces per acre.
Spray trucking driving down street and spraying

Spray Exclusion

If you wish to exclude your property from ground spraying, please complete a Mosquito Spray Avoidance Request (PDF) and return it to the Mosquito Control Division.

Spray Season

During the spray season, May through October, spray information will be posted on our website and on the mosquito spray hotline by 3 p.m. each day. The Mosquito Control hotline is 757-890-3793.