Why they keep coming back
Red imported fire ants are established across Dallas–Fort Worth. Killing one mound does not stop new queens from flying in, and colonies often have more than one queen. That is why mound-by-mound treatment alone tends to feel endless.
The two-step method
- Step 1: broadcast a fire ant bait over the whole yard when ants are actively foraging, usually on a warm, dry day
- Step 2: a few days later, treat any mounds that are still active, or near where people walk, with a mound treatment
- Repeat the yard-wide bait in spring and fall
- Always follow the product label for amounts and safety
Timing tips
Bait works when ants carry it back to the colony, so apply it when they are foraging and when no rain is expected for a day or so. Mounds often appear right after rain, because the ants move up as the soil gets wet.
What a pest control company adds
Many companies offer fire ant treatment as part of a lawn or perimeter plan. Some use longer-lasting products that homeowners cannot easily buy. Ask how long the treatment should last and whether re-treatment is included.