How can I tell the difference between fire ants and some of the common native ants?

Imported Fire Ants October 01, 2015 Print Friendly and PDF

Fire ant workers are polymorphic, which means that their workers can vary in size from 1/16 to almost 1/4 inch long. In contrast, native ant species' workers are uniform in size.

Imported fire ant mounds can sometimes reach 3 feet in height and 2 feet in diameter. Fire ants are highly aggressive and will bite and sting when disturbed. Their sting produces a burning sensation, and in a day or so a white pustule may form at the site.


Related Content


Find more information about fire ants in eXtension's Imported Fire Ant Resource Area

QR code.

Connect with us

  • Twitter
  • Facebook
  • YouTube
  • Pinterest


This is where you can find research-based information from America's land-grant universities enabled by



This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.