🦟 Mosquito Control in Westchester County, NY

Westchester County's diverse landscape — from Long Island Sound shoreline to the Hudson River, from dense suburbs to wooded northern preserves — creates a wide range of mosquito habitat. Standing water after rain events, storm drain backups, and ornamental water features all become breeding grounds. The county's humidity, particularly in July and August, accelerates mosquito development from egg to biting adult in as few as 7–10 days.

The most common species in Westchester are the Asian tiger mosquito (Aedes albopictus), which breeds in tiny containers and bites aggressively during the day, and the common house mosquito (Culex pipiens), which breeds in stagnant water and is the primary vector for West Nile virus in Westchester. The county's Health Department runs an active West Nile surveillance program each summer.

Towns along the Sound — New Rochelle, Mamaroneck, Rye, Port Chester — face elevated mosquito pressure from coastal wetland habitats. Inland wooded areas like Mount Kisco, Bronxville, Dobbs Ferry, and Scarsdale see pressure from leaf-clogged gutters, shaded low spots, and suburban drainage features.

How We Treat Mosquitoes in Westchester County

• Barrier spray treatments — Targeting shrubs, ornamental grasses, tree canopy edges, and dense vegetation where adult mosquitoes rest during daylight.
• Standing water treatment — Larvicide dunks and granules applied to ornamental ponds, bird baths, and drainage areas to kill larvae before they hatch.
• Source reduction consultation — Identifying and eliminating breeding sites on your property (clogged gutters, containers, low spots).
• Seasonal programs — Typically 6–8 treatments from May through September, timed to peak mosquito pressure windows.
• Event treatments — One-time treatments before outdoor gatherings, with 24–48 hour advance booking available.