Home
Up

 

Argentine Ant

Characteristics – 
Size:  Workers of this species are about 1/8-inch in length.

Color:  Varies from dark brown to black, and the body is often shiny in appearance.

The colonies of argentine ants can grow quite large and contain tens of thousands of workers and numerous queens. Each colony will be divided into subcolonies located in various suitable harborages connected by established trunk trails. These subcolonies will number from a few hundred to thousands of individuals.

Behavior –  The colony may have hundreds of queens, and each colony will be divided into a number of subcolonies. Since members of two separate colonies are not aggressive toward each other, colonies will often combine with one another. This creates huge super-colonies that may extend over several properties. Argentine ants are very aggressive and will drive out native species of ants creating an environment where they are literally the "king" of the anthill, so to speak. Their primary food source during the warm months is the sweet honeydew produced by aphids and mealybugs. The presence of fruit trees, roses, and other plants that attract aphids often contributes to argentine ant infestations.

Habitat –  Argentine ants reside outdoors, usually in shallow nests in the soil beneath a stone, board, or any other item that provides protection. Small, medium, or large subcolonies will locate themselves in piles of lumber, bricks, or debris; in landscape mulch; behind brick and stone veneer; within and under insulation; and in wall voids or any other suitable void. This ant is also very common in homes throughout most of the Gulf Coast states.

Tips for Control –  The argentine ant can be nearly impossible to control, especially during midsummer. At best, regular treatments keep as few ants as possible from entering the home or business.