Pavement Ant

The pavement ant, Tetramorium caespitum, is a common household pest. Their name comes from the fact that they usually make their homes under pavement. They are distinguished by one spine on the back, two nodes on the petiole, and grooves on the head and thorax.

Description:
The pavement ant is dark brown to blackish, and 2.5–4 mm long.  Like other ants there are the workers, alates, and a queen. Each individual colony contains thousands of workers, multiple queens and is usually located at one particular site.   The pavement ant earns its name well, building nests beneath and along the sides of pavement: patios, driveways, sidewalks, foundations of homes.  These pests can also be found inside of homes (and other structures) in wall voids, beneath toilets and water heaters.  They also will readily nest in and beneath insulation in walls.  Outdoors, you will see pavement ants nesting beneath mulch, landscaping, stones and logs, and also along curbs.

Colony Structure:
Each colony of pavement ants contains thousands of workers and multiple queens.  Swarming of reproductives can take place any time of the year but usually takes place in the Spring. With colony population numbering in the thousands, the amount of swarming reproductives can be remarkable.

Foraging, Food Preferences:
Pavement Ants are active foragers who will set up trails along baseboards, beneath the edges of carpets, beneath toilets and other areas inside a structure.   Worker ants will also readily move to different rooms and floors via plumbing lines.  These lines not only provide a “highway” but also entry points, moisture source and (in cold seasons) heat.  The small ants feed on a variety of foods, including grease, sweets, seeds and dead insects.  Pet foods or any food dropped on the floor will quickly covered with pavement ants.  They also feed on the honeydew produced by aphids and are an occasional pest of vegetable gardens.

Pavement Ant Elimination:
Absolute Pest Control will inspect your property and look for the soil displaced by a pavement ant colony is usually quite evident around any outdoor concrete object: curbs, driveways, sidewalks, landscaping, brick patios, etc.  In many cases, the loose soil can be seen along cracks or expansion joints of driveways and other such objects.  Their colonies can also be found adjacent to the foundations or skirting of homes. Absolute Pest Control willinspect around the edges of (and beneath, if possible) any logs or large rocks.  In a sense, leave no stone unturned.  In severe infestations, a number of objects can harbor many different pavement ant colonies.  Each of these colonies or ant beds need to be located and treated in order to kill pavement ants and to stop their migration indoors.

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