Root Pest Library
Ant Control for Texas Homes
Updated June 14, 2026
Texas has far more ants than just the fire ant, and the species crawling across your kitchen counter usually isn't the one stinging you in the yard. The everyday indoor culprits are tiny odorous house ants (they smell faintly sweet when crushed) and Argentine ants (which form enormous, cooperative supercolonies and endless trails). Then there are the ones that signal a bigger issue: carpenter ants, which nest in moist or damaged wood, and tawny crazy ants, a Gulf-Coast invader that swarms in massive numbers and fouls electrical equipment. The single most important thing to know: with most of these, spraying the trail makes the problem worse, not better.
The ants you're actually seeing
Odorous house ants are the tiny brown/black ants trailing to sweets and water indoors — harmless but relentless. Argentine ants look similar but build supercolonies that can span yards and link nests, which is why their trails never seem to end. Carpenter ants are large (often black); they don't eat wood like termites but excavate galleries in wood that's already wet or rotting — so finding them is a flag for a moisture problem. Tawny ("crazy") ants move in fast, erratic swarms in huge numbers and are notorious for shorting out outdoor electrical equipment.
Why "just spray them" backfires
Most of these ants live in colonies with multiple nests and queens. A repellent spray kills the visible foragers and signals the colony to fragment and relocate — so you knock down the trail you see and create two trails you don't. The colony keeps producing foragers faster than you can spray. This is the same dynamic that makes fire ants so hard to DIY, and it's why baiting beats spraying.
Why they come inside
Ants forage for water and food, and Texas heat and drought drive them indoors looking for moisture — which is why you often see more of them inside during dry spells and after rain disrupts their outdoor nests. Kitchens, bathrooms, pet bowls, and any small crack near the foundation are the usual on-ramps.
The carpenter-ant exception
If you're seeing large ants and especially fine sawdust-like shavings near wood, that's worth taking seriously — carpenter ants nest in moisture-damaged wood, so they're both a pest and a signal that you have a leak or rot to fix. Treating the ants without fixing the moisture just invites them back.
DIY vs. a pro — honestly
You can manage a light, single-species trail with the right bait (slow-acting, carried back to the colony) plus cutting off food and sealing entry points — but two things trip homeowners up: using repellent sprays that scatter the colony, and misidentifying the species (the bait that works on sugar ants does nothing for a grease-feeding species, and crazy ants barely respond to standard baits at all). When trails keep returning or you're dealing with carpenter or crazy ants, it's a pro job.
How Root handles ants
We identify the species first, because it decides the bait and the strategy, then bait the colony rather than just spraying the trail, treat the exterior and entry points, and flag the moisture or wood conditions (for carpenter ants) that keep them coming. Because our techs work these neighborhoods, they recognize the local trouble species — including the crazy-ant pressure that standard approaches miss. Same-day service is available when capacity allows.
Frequently Asked Questions
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