Fire Ant
Ants

Fire Ant

Solenopsis invicta

Quick ID Markers

1Reddish-brown body, 1/8"–3/8" long
2Aggressive — attacks immediately when mound disturbed
3Dome-shaped mounds in open, sunny areas
4Painful burning sting, may cause anaphylaxis
5No visible hole in center of mound

Habits & Biology

Fire ants are highly aggressive, omnivorous scavengers that prefer sunny, open areas. Colonies can have 100,000–500,000 workers and multiple queens.

Typical Hiding Areas

Mounds in lawns, fields, garden beds, and around foundations. Occasionally enter structures during flooding.

Signs of Activity

Active mounds in yard
Boiling swarm when mound is disturbed
Small red ants trailing to food sources

🗓️ Seasonality

Year-round in the South; peak activity in spring and fall when temperatures are mild.

⚠️ Mistaken Identity

Harvester Ant (larger, no aggression)Pavement Ant (smaller, gray, no dome mound)

🧪 Treatment Plan

Use a Two-Step method: broadcast bait across the yard, then treat individual mounds. Never disturb mounds before treatment — workers will relocate the queen.

Call a pro if mounds are within 10 feet of a structure or if someone in the household is allergic to stings.

Apply fire ant granular bait across the entire lawn in early morning or evening when ants are foraging. Workers carry bait back to queen. Wait 3–5 days before mound treating.

Apply when soil is dry — moisture deactivates the bait oil
Use a hand-held spreader or fertilizer spreader for even coverage

Prevention After Treatment

  • •Broadcast bait twice yearly (spring and fall)
  • •Keep landscaping trimmed away from the foundation
  • •Inspect yard regularly, especially after rainfall
This application is an independent educational resource and is not affiliated with or endorsed by any government agency.
⚠️ AI-assisted identification reviewed by a licensed applicator. Always verify critical information before acting.