Fire ants are small to medium-sized ants, typically 1/8 to 3/8 inch long within the same colony, with a reddish-brown to copper-colored head and thorax and a darker brownish-black abdomen. They have a two-segmented waist (petiole) and a small stinger at the tip of the abdomen, which sets them apart from many other backyard ants that can only bite. In Southern California, invasive red imported fire ants have been found in scattered locations, including parts of Orange County and the greater Los Angeles area, often introduced through nursery stock, soil, or landscaping materials, though populations here are more localized than in the southeastern U.S.
Fire ants build mound nests in soil, typically in sunny, open areas such as lawns, garden beds, along sidewalks, or near irrigation systems where the ground stays consistently moist. Unlike some ants that hide their nest entrance, fire ant mounds are often loose, fluffy-looking dirt piles with no obvious single opening, and the ants are quick to swarm out in large numbers when the mound is disturbed, whether by a lawnmower, a footstep, or curious pets.
Fire ants are a recognized problem primarily because of their sting, which is well documented as more painful than the bite or sting of most other backyard ants and can cause a raised, itchy welt that sometimes develops into a small blister. Because they defend their mounds aggressively and in large numbers, they pose a real risk to children and pets playing in yards where a nest has gone unnoticed, and their mound-building can also damage lawns, garden beds, and irrigation equipment over time.
If you suspect fire ants on your Los Angeles or Orange County property, don’t wait to address it. Guarantee Pest Control has served local families since 1958, and our technicians will inspect your yard, confirm the species, and recommend an effective treatment plan to reduce the risk to your family and pets. We offer eco-friendly Guarantee Green options, a 3-month guarantee on most services, free estimates, and no-penalty cancellation. Call 1-800-507-3787 or request your free estimate at /get-a-quote/.