Why Fire Ants Keep Coming Back
Treating individual mounds is temporary. Surviving queens relocate and new colonies move in from adjacent properties. Williamson County's clay soils and warm climate allow colonies to establish quickly after mound-only treatments.
The Two-Step Method
Broadcast a slow-acting bait across the entire yard to let foragers carry the active ingredient back to the queen. Follow with individual mound treatments for active mounds. The bait step is the key — mound-only treatment skips the queen.
Timing Matters
Fire ants forage most actively in spring and fall when soil temperatures are between 70–85°F. Applying bait during active foraging periods dramatically improves results. Summer heat drives ants deeper and reduces bait pickup.
Where to Inspect
Check along driveways, sidewalk edges, near A/C units, at the base of tree trunks, and in open lawn areas after rain. Fire ants rebuild mounds quickly after rain events, so post-rain inspection identifies new activity early.
Frequently Asked Questions
Why shouldn't I just treat the mound?
Mound-only treatment kills workers at the surface but rarely reaches the queen. The colony relocates or another moves in.
How long until fire ants are gone after treatment?
The two-step method typically shows significant reduction within two to six weeks as bait reaches the queen.
How dangerous are fire ant stings?
Fire ant stings cause a burning sensation and white pustules. Multiple stings or allergic reactions can be serious. Children and pets are most at risk.
Local Help in Central Texas
Vector 1 Pest Control treats fire ants in Round Rock, Georgetown, Cedar Park, Leander, and all of Williamson County. Call (512) 652-6300.