Color: Dark brown to blackish
Legs: 6
Shape: Segmented; oval
Size: 1/8″
Antennae: True
Pavement ants get their name because they make their nests in or under cracks in pavement. They can infest commercial properties and other structures.
Pavement ants are opportunistic omnivores with a broad diet of animal and plant matter, including live or dead insects, seeds, and honeydew. Highly attracted to human food, they readily consume sweets, protein, and fat-rich items (e.g., meat, nuts, cheese). This diverse diet contributes to their adaptability as common structural and household pests near human settlements.
These ants do not pose a public health risk, but they can contaminate food. This makes any infestation a concern for businesses that deals with food handling, preparation and storage.
Pavement ants (Tetramorium caespitum) are identified by the small, conical soil mounds above their nests, which mark the colony's entrance and underground tunnels. These piles of excavated dirt, the primary sign of infestation, are often found along or pushing through hardscape like sidewalks and patios, as the ants frequently nest near human structures for stability.
Eliminate standing water – these ants are attracted to moisture. Keep tree branches and other plants cut back from the exterior walls of your property, as these ants can use these branches to get into your premises. Make sure that there are no cracks or little openings around any of your buildings, as these may provide access routes for ants. Make sure that firewood and building materials are not stored next to any building, as ants can build nests in stacks of wood.
Pavement ants are drawn to sidewalks because they offer the necessary heat, accessible food, and sufficient moisture for colony survival. Surfaces like concrete walkways and paved driveways are particularly attractive, as they efficiently absorb and radiate solar heat, providing the perfect warm environment for ant nests.
Pavement ants are omnivorous, consuming a wide range of food sources. Their diet includes natural items such as honeydew secreted by aphids, nectar, fruits, seeds, and other insects. They are also attracted to most common household foods, readily eating meats, grease, bread, cheese, and even ice cream.
Pavement ants seek out various food sources, such as sweet items, greasy residues, and crumbs. They are also drawn to moist environments, like areas near leaky pipes or damp soil. To effectively manage and prevent pavement ant problems, ensure your property is kept clean and dry, eliminate accessible food and water sources, and secure all potential entry points.