Carpenter ants vs. Termites: What's the Difference?
Carpenter ants are often mistaken for termites, but the differences matter for treatment. Carpenter ants excavate wood to create smooth galleries for nesting—they do not eat wood. Termites consume wood cellulose and leave mud tubes and frass (wood-colored pellets). Carpenter ant damage is often cleaner, with piles of sawdust below entry holes. Swarmers (winged reproductives) are also distinct: carpenter ants have a pinched waist, bent antennae, and front wings longer than hind wings; termites have a straight waist, straight antennae, and equal-length wings that break off easily. Treatment differs significantly. Carpenter ant control requires locating and treating the parent nest (often outside in a tree stump or log) and satellite nests inside walls. Liquid sprays and dusts are common. Termite control involves soil barriers, wood treatments, or baiting systems. If you see sawdust, you likely have carpenter ants—call a pro to assess before structural damage worsens.
Fire ants: A Southern Menace
Red imported fire ants (Solenopsis invicta) are an invasive species that has spread across the southern US, from Texas to the Carolinas and into California. They build large mounds in sunny areas—lawns, pastures, parks, and roadsides. Disturbing a mound triggers a swarm of aggressive stinging ants. Their venom causes painful pustules that can become infected, and in sensitive individuals, severe allergic reactions. Fire ants also damage crops, electrical equipment, and infrastructure. Control requires a two-step approach: broadcast granular bait over the entire property (not just mounds) to kill the queen, followed by individual mound treatments with contact insecticides. Professional programs often include quarterly baiting. DIY mound treatments (like pouring boiling water) are rarely effective long-term. Annual costs for fire ant control on a typical lawn range from $150 to $400.
The Science of Ant Baits: Why They Work
Ant baits are the most effective way to eliminate an entire colony. They consist of a slow-acting poison mixed with an attractive food source (sugar, protein, or grease). Foraging ants carry the bait back to the nest, where it is shared with the queen, larvae, and other workers through trophallaxis (food sharing). Because the poison acts slowly, it doesn't trigger avoidance behavior, and the entire colony is poisoned over days to weeks. Professional baits use advanced active ingredients like fipronil, indoxacarb, or abamectin at concentrations optimized for ant biology. Retail baits often have lower concentrations or less attractive matrices. For best results, place baits along ant trails and avoid using sprays nearby (sprays contaminate the bait). A technician will identify the species and choose the right bait type—for example, protein-based baits for carpenter ants, sugar-based for odorous house ants. Baiting is safe around pets and children when used as directed.
What surveys and cost guides say about ant problems
Homeowners often ask whether an ant problem is unusual and whether a quoted price is normal. Public research cannot answer either question for one house, but it does set expectations. Here is what the sources report. For homeowners, the point is that damage is rarely the first sign: just 10% of pros in the National Pest Management Association's 2011–12 survey cited it as a call trigger, though that reflects pro caseloads, not how many homes had ant damage. When the National Pest Management Association (NPMA) polled ant-control professionals in 37 states in 2011–12, 82% said they had encountered infestations in apartments and condos; the figure reflects responding pros and says nothing about the share of units affected. Homeowners who find ants near a sink or tub are seeing something professionals see constantly: 89% of pros in the National Pest Management Association's 2011–12 survey had treated bathrooms, though that measures pro experience, not how many homes are affected. Nearly three in ten U.S. respondents had tried a home remedy on ants, per a Harris Poll survey the National Pest Management Association (NPMA) released in July 2026, a reminder that DIY attempts are common, though the release omitted the sample size and field dates. HomeTeam Pest Defense's March 2022 online survey of U.S. homeowners ages 25 to 75 found that 44% had hired a pest-control service; the sponsor sells that service and the sample was undisclosed, so this is self-reported behavior rather than a market measurement. Use these numbers as context, not as a diagnosis. A provider's written inspection findings should drive the treatment plan, and any quote should spell out how many visits, which areas and what follow-up it covers.