Red imported fire ants have colonized every yard in St. Tammany Parish. Our targeted mound treatments and broadcast baiting programs reclaim your outdoor spaces on the North Shore.
📞 (985) 271-4855Mandeville sits on the North Shore of Lake Pontchartrain in one of the most fire ant–dense corridors in the entire Gulf South. The red imported fire ant (Solenopsis invicta) arrived in Louisiana through the Port of New Orleans decades ago and found the warm, sandy-loam soils of St. Tammany Parish absolutely ideal for colony building.
With annual rainfall exceeding 64 inches and summer temperatures regularly above 90°F, the ground in neighborhoods like Old Mandeville, Beau Chene, and the Lakefront stays moist enough for fire ants to build massive mounds year-round. Unlike northern states where freezing winters kill off colonies, Mandeville's mild winters—rarely dipping below the mid-30s—mean fire ant populations simply never crash. They slow down in January and February, then explode as soon as the spring rains return in March.
Louisiana State University AgCenter research estimates that St. Tammany Parish averages 40–80 fire ant mounds per acre on untreated residential land. A single colony can contain 200,000 to 500,000 workers. In Mandeville subdivisions like Beau Chene, Tchefuncte Club Estates, and Woodlands, homeowners routinely find 10–15 active mounds in a standard quarter-acre yard after heavy spring rains push colonies to the surface.
The dominant outdoor ant in Mandeville. Aggressive stingers that build dome-shaped mounds in lawns, flower beds, near sidewalks, and along the Tammany Trace bike trail. Their venom causes painful welts, and attacks on small children and pets near the Mandeville Lakefront are reported every summer.
Mandeville's proximity to Lake Pontchartrain means high humidity year-round, and carpenter ants exploit this by nesting in water-damaged wood. Older homes in the Old Mandeville historic district—many with pier-and-beam foundations and mature live oaks—see carpenter ant activity from April through October.
These tiny brown ants invade Mandeville kitchens and bathrooms following moisture trails. During summer downpours and tropical storm season, colonies seek shelter indoors. Homes along Lakeshore Drive and in the Pontchartrain Landing area frequently report indoor odorous ant trails along countertops and windowsills.
Forming supercolonies that can stretch across multiple properties, Argentine ants are a growing nuisance in newer Mandeville developments off Highway 190 and Causeway Boulevard. They don't sting, but their sheer numbers overwhelm kitchens, pet food bowls, and outdoor dining areas.
We use the LSU AgCenter–recommended "Two-Step Method" adapted for North Shore conditions:
Between treatments, we monitor for reinvasion from neighboring properties and the undeveloped wooded areas common throughout St. Tammany Parish.
For carpenter ants, odorous house ants, and Argentine ants that have made it inside your Mandeville home, we use a combination of non-repellent liquid treatments and gel baits placed along entry points and foraging trails.
We pay special attention to the moisture-prone areas that Mandeville homes are known for—crawl spaces with inadequate ventilation, bathrooms with poor exhaust, and the junctions where pier foundations meet siding. The Lake Pontchartrain humidity means even well-maintained homes in subdivisions like Sanctuary and Cannes Brulee can develop ant highways along plumbing lines.
Our interior treatments use products that are safe for families and pets while remaining lethal to ant colonies for up to 90 days.
Our ant control trucks cover every corner of Mandeville and the surrounding North Shore communities:
Mandeville fire ants don't take a day off—and neither do we. Available 24/7 for ant emergencies and scheduled treatments across the North Shore.
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