One reason imported fire ants are so abundant in the United States is that their specific natural enemies, which keep their population levels in check, were left behind in their native South America.

The population of tiny stinging ants has surged despite efforts to control the invasive species. Experts fear devastating consequences if the infestation spirals out of control.

Southern states familiar with an invasive, stinging ant are facing a new foe: A hybrid bug that combines the fierce red fire ant and the hardy black fire ant. Imported fire ants have spread from their ...

Invasive fire ants, first arriving in the U.S. in 1918, have spread throughout the Southeast, causing problems for residents and farmers. Adding to the problem, red and black fire ants are ...

The red imported fire ant has infested a property in Montecito. (Smith Collection / Gado / Getty Images) A new population of "highly aggressive" red imported fire ants has infested a private property ...

A new population of “highly aggressive” red imported fire ants has infested a private property in Montecito, according to Santa Barbara County officials. The ants are capable of biting and stinging ...

This kind of bites: Climate change is making fire ants an increasingly hot topic in Florida these days. But our efforts to tame them may only be scratching the surface. Red imported fire ants rank ...

EAST TEXAS - Just last week, I kneeled down to get a closer look at a weed and put my knee squarely in a fire ant mound. I swatted my pants leg and got all of them off without getting stung. It was a ...