Pavement ants are a common pest in urban and suburban areas, known for their small size and nesting habits around sidewalks, driveways, and building foundations.
These ants are typically 2.5 to 4 mm in length and range in color from dark brown to black, with distinctive ridges on their head and thorax. While they possess stingers, pavement ants rarely pose a direct threat to humans. Their nests are often marked by small mounds of displaced soil near cracks in pavement, and they are particularly drawn to sugary and greasy foods, making kitchens and pantries frequent targets.
Highly social, pavement ants live in colonies that house thousands of workers and multiple queens. Their omnivorous diet includes insects, seeds, and food crumbs. In spring and summer, winged reproductive ants swarm to find mates and establish new nests, increasing their visibility. During colder months, they often invade homes for warmth and food. Though not a direct health hazard, pavement ants can contaminate food and surfaces and become a significant nuisance when present in large numbers. Their nesting habits near foundations and sidewalks may also lead to minor structural issues over time.
Preventing infestations involves sealing entry points around windows, doors, and foundations, as well as maintaining cleanliness by promptly cleaning up food crumbs and spills. Reducing moisture levels by fixing leaks and managing humidity can also deter ants. For active infestations, baiting systems and insecticide sprays are effective treatments, while natural remedies like vinegar sprays and diatomaceous earth offer eco-friendly alternatives. Professional pest control is recommended for severe infestations to ensure thorough elimination of colonies. With proper prevention and treatment, pavement ant infestations can be effectively managed, keeping homes and businesses pest-free.