A homeowner’s guide to fire ants in Columbia, SC.

Why mounds appear after weather changes

Warm soil and moisture can bring more mound-building activity near the surface. Colonies may also relocate or become more visible after disturbance.

Keep people and pets away

Mark active areas when practical and avoid kicking, mowing directly through, or standing on a mound. Fire ants can sting repeatedly. Seek medical help for severe or concerning reactions.

Mound-only treatment may miss the wider property

Addressing one mound can be useful, but surrounding colonies and reinvasion may keep pressure active. Product selection, timing, weather, and label directions matter.

Do not use improvised remedies

Gasoline, boiling liquids, fire, and unapproved mixtures can injure people, harm turf, contaminate soil, or create fire and environmental hazards. Use only registered products exactly as labeled or hire a professional.

Focus on high-use zones

Play areas, pet spaces, paths, patios, mailboxes, and frequently mowed lawn deserve priority when planning treatment and follow-up.

Weather and product directions affect the result

A product intended for an individual mound may have different timing, watering, and placement directions than one intended for a larger area. Wind, rain, irrigation, and soil conditions can also matter. Read the entire label before opening the container, use only the labeled amount and location, and keep people and pets away as directed. Do not assume combining two approaches will work faster.

Recheck without disturbing the site

Mark priority mounds and observe from a safe distance after the label’s stated interval. Look for movement to a nearby location as well as activity at the original mound. New colonies can enter a property even after successful treatment, so continue checks after warm rain and around the yard spaces that people use most.