If you’ve walked across your lawn after a heavy rain this fall and spotted a fresh mound of loose, fluffy soil that wasn’t there a few days ago, you’ve likely met one of Florida’s most persistent lawn pests: the red imported fire ant. Late summer and early fall, when Brevard County sees frequent rain from the tail end of hurricane season, is prime time for fire ant activity.
Why Rain Triggers Fire Ant Mounds
Fire ants build their colonies underground, and heavy or prolonged rain can flood their tunnels. When that happens, the colony often relocates closer to the surface, or the ants build new mounds nearby to escape standing water. That’s why a lawn can go from mound-free to dotted with several new mounds within a day or two of a big storm.
This same pattern shows up after irrigation runs heavy or after Florida’s typical afternoon summer storms, but it’s especially noticeable during the wetter stretches of hurricane season, which runs through the end of November.
How to Identify a Fire Ant Mound
Fire ant mounds have a few telltale features:
- Loose, crumbly soil piled several inches high, often with no visible entrance hole on top
- Mounds that appear suddenly, sometimes overnight, especially after rain
- Aggressive activity when disturbed. Fire ants will swarm out quickly if the mound is stepped on or poked
- A painful, stinging bite if you come into contact with them, which can cause a raised, itchy welt that turns into a small blister
Unlike some ant species, fire ants don’t hesitate to defend their mound. If you or a pet accidentally disturbs one, you’ll likely know within seconds.
Why You Shouldn’t Ignore Them
Beyond the sting risk, fire ants can be a real problem for your lawn and landscaping. Their mounds damage turf, and large colonies can undermine soil near sidewalks, patios, and foundations over time. They’re also a serious concern for kids and pets who spend time outside, since a single mound can contain thousands of ants ready to respond to a disturbance.
Fire ants are also notoriously difficult to get rid of with surface-level treatments alone. Broadcasting bait or drenching a single visible mound often just pushes the colony to relocate a few feet away, which is why homeowners can end up feeling like they’re chasing the same problem around the yard.
What Homeowners Can Do
- Walk your lawn after every significant rain event during late summer and fall, since new mounds tend to appear quickly.
- Keep kids and pets away from any mound you find until it’s been treated.
- Avoid disturbing a mound directly. Stepping on it or spraying it with a hose can provoke the colony without solving the problem.
- Skip the DIY mound-by-mound approach if you’re dealing with more than one or two mounds, since treating what you can see rarely addresses the full colony.
- Have your lawn treated on a schedule, rather than only reacting when a mound appears, since fire ant colonies are often present below ground before they surface.
Let Us Handle the Fire Ants So You Don’t Have To
Fire ants are one of those pests that seem manageable until you’re dealing with a whole colony spread across your yard. A professional treatment plan targets the colony itself, not just the mounds you can see, which means longer-lasting results and fewer surprises after the next storm rolls through.
If fire ant mounds have been popping up on your property this season, give Flowers Turf & Pest a call at 321-254-1929. We’ll get your lawn back to being safe for the whole family to enjoy.