Cumberland County Vector Control Office will conduct a mosquito prevention spraying Wednesday beginning at dusk in parts of Hampden, Silver Spring and South Middleton townships.
Spraying will take place between 8 p.m. and 11 p.m. The spraying usually doesn't begin until after sunset since adult mosquitoes are most active at that time, according to Vector Control.
Vector Control will use an ultra-low volume mosquito control treatment of DeltAGard ULV, which is labeled for use around humans and animals, and will have little impact on other insects. The spraying is to reduce high populations of mosquitoes, which can carry the West Nile Virus.
Vector Control said the nozzle on the truck is angled upward to allow for materials to travel in the direction of a breeze. The truck operator will discontinue spraying within 50 feet of a passerby when possible, according to the department.
The department still advises that residents may want to avoid being outside at the time the area is being sprayed.