Kitty Hawk, NC's Seasonal Mosquito Barrier Treatment Team

Residual barrier spray typically holds for around three weeks before new mosquito activity requires re-treatment.

Both — barrier spray handles adult mosquitoes while larvicide treats standing water we can't drain, addressing the full breeding cycle.

Barrier products are applied according to label guidelines for residential use — we'll flag any areas needing special handling.

Event treatment is common; we time the application so the barrier is at peak effectiveness for your specific date.

Ponds and water features usually need larvicide treatment rather than barrier spray, since spray doesn't reach larvae developing in the water.

A three-week cycle is typical, though heavier rainfall seasons sometimes call for tighter scheduling. It also helps to check for any new containers holding water after storms, since a single overturned bucket can restart breeding within days.