Keeping mosquitoes out of the house means reducing both entry points and nearby standing-water breeding sites. Intact screens, well-sealed doors, and eliminating stagnant water usually provide more lasting control than repeatedly spraying insecticide indoors.
Repair screens and door gaps
Inspect accessible windows, doors, and vents and repair holes in screening. Weatherstripping and doors that close tightly reduce entry, especially around dawn and dusk.
Remove standing water near the home
Empty plant saucers, toys, buckets, tarps, and containers that collect rain. Keep gutters flowing and refresh necessary pet or bird water regularly where appropriate.
Use airflow in occupied areas
Mosquitoes fly poorly in steady moving air. A fan on a porch or in an occupied room can reduce bites while entry points are being corrected, although it does not replace breeding-site control.
Heavy indoor numbers can reveal an unscreened opening
If many mosquitoes appear indoors every evening, check frequently used doors, unscreened windows, and damaged vents. Rather than treating the entire house, correct the entry route and the outdoor sources feeding it.
Sources
- U.S. Environmental Protection Agency (EPA) — Integrated Pest Management — Integrated pest management using sanitation, exclusion, monitoring, and targeted control.