Big Headed Ants thrive in disturbed soil. That’s the key.

In rapidly developing areas like Tradition, Port St. Lucie, and Palm City, new construction pushes ant colonies into nearby homes. What was once orange groves or cattle ranches is now residential neighborhoods. When bulldozers tear up the ground, Big Headed Ant colonies scatter. Your house becomes prime real estate for them to set up shop.

According to the University of Florida IFAS Extension, Big Headed Ants are an invasive species that reproduce rapidly and establish satellite colonies inside structures. They don’t need much – a crack in your foundation, a gap where plumbing enters the slab, a window frame that’s not perfectly sealed.
Once they’re in, they start excavating and pushing dirt into your walls and eventually the floors.

Here you can see Big Headed Ants have built a mud tube along the foundation of a home to enter from behind the stucco

If there are a variety of materials present—different shapes, sizes, colors—it’s dirt and/or material from inside your walls. The presence of bits of wood is actually a great sign that its ants and not termites. There likely is wood shavings inside you walls left over from the construction process. Termites consume wood and ants do not. If there are bits of wood mixed into the material you are seeing, it’s likely from ants and not termites.

Big Headed Ants and Fire Ants both bring soil into homes when they’re trying to nest inside walls. The dirt is excavated from their tunneling and pushed out through cracks around baseboards, window frames, and door trim.

Where exactly is it appearing?

Keep in mind that ants are likely not depositing dirt at random places in the middle of the floor or on the countertops. A situation like that is more likely to be termites as they may be in a wood beam and dropping their pellets down from the ceiling.

Dirt accumulating along baseboards, on window sills, and especially along exterior walls is more likely to be an ant issue.

This is the major red flag of the most destructive termites.

If the material is sticking together and adhering to the wall—instead of just falling to the floor—you’re likely dealing with Subterranean Termites.
Subterranean Termites need moisture to survive, similar to what they find underground. For this reason, they build mud tubes along the surface of the object they’re feeding on to insulate themselves from sunlight and dry air. These tubes are made of soil, termite saliva, and feces. The tubes stick together and when subs are present inside of a wall, they will occasionally make holes in the drywall that will be filled with this mud.

If this material is pushed through cracks where the window frame meets the wall, along trim boards, or around door frames, that’s a sign of Subterranean Termites. They do damage much more quickly than Drywood Termites and require immediate professional treatment.

If you can see the insects themselves, identification becomes easier.

Besides cutting a hole in your drywall, it can be difficult to know for sure if you have ants living in your walls. Here are the species we encounter most often inside homes in Port St Lucie, Tradition, and Palm City:

Each species requires a different treatment approach. Identification matters. As you might imagine, to the untrained eye an ant looks like an ant. Sometimes even a termite looks like an ant. That is why trained professionals are important. If the company you contacted sent someone out to do an inspection, listen for specifics to see of they know what they are talking about. If they are speaking in generalities, they sent out a salesperson under the pretext of an inspection, and it might be best to call someone local.

Big headed ants carrying bait back to their nest.

As a general rule, baits should be used to resolve any ant problem inside a house. Note: this doesn’t mean the bait should necessarily be applied inside. Drawing the ants out of the home is often an important aspect of the treatment.

It’s important to remember: Deploying sprays can drive ants into other parts of the home instead of eliminating them. In some species—like Pharaoh Ants—spraying causes a reaction called “budding,” where the colony splits and starts a new, separate colony elsewhere in your home, inadvertently making the problem worse.

Additionally, the actual location of a nest is usually difficult, if not impossible, to locate. Worker ants spend nearly every moment exploring and seeking out food to bring back to the nest. By using baits, the ants do the work for you. They carry the bait back to the colony, feed it to the queen and larvae, and the entire colony collapses over the course of days to a couple of weeks.

Fire Ants pose a health hazard and can react aggressively when a colony is slowly dying from bait. Also, unlike other ants, the location of a Fire Ant nest in a wall typically isn’t that hard to find. They will often build their large characteristic mounds right up against an exterior wall where it’s visible from the outside. With Fire Ants, a spray on the inside and outside is typically highly effective and fast acting.
Spray these painful pests immediately.

Carpenter Ants infesting water damaged wood

It’s not always ants or termites. Other insects can also leave sawdust-like material:

• Powderpost Beetles
• Wood Boring Beetles
• Old House Borers
• Bark Beetles
• Carpenter Bees

With most wood-boring beetles, the frass truly resembles sawdust—light, fluffy, and fine. Carpenter Ant frass is a messy mix of various materials. Termite pellets are uniform, hard, and consistent in shape.

Note: Wood destroying beetles are not a common problem in homes on the Treasure Coast. Old barn buildings and antique furniture are more likely to have these issues than, say, trusses in relatively young South Florida homes. If an inspector claims to have found powder post beetles in your home, get a second opinion before paying to have the house tented.

If you’re building or buying new construction in Tradition or western PSL, here’s what you need to know:
Big Headed Ants move into new homes during or immediately after construction. Disturbed soil, gaps in the foundation, and landscaping that’s still settling all create entry points.

Prevention tips:

Termite remediation is often an unexpected expense that adds up fast. Subterranean Termites often attack outside load-bearing walls. Replacing destroyed beams is complicated—and expensive—if temporary supports have to be built while replacing the damaged wood.

Preventative treatments for termites will always be less expensive than waiting until you have an active infestation. Homeowners in termite-prone areas like Port St Lucie and Palm City would be wise to get quotes on preventive termite treatment.

Pre-construction termite treatments of the soil don’t typically last very long for a couple of reasons. First and foremost, construction companies hire the pest control company that will fulfill their regulatory compliance at the cheapest cost. Period. The contractor is not calling around for who will do the best job or provide the best value to the future homeowner. They find the company that will provide the necessary paperwork to get their next permit at the cheapest price and that’s it. Consequently, the company hired to perform the termite treatment use the absolute cheapest termiticides possible in order to remain competitive on price. That is a long way of saying, when the one-year guarantee is up, homeowners should seriously consider shopping around for an effective termite preventive treatment.

There is a second variety of pre-construction termite treatment. Borate based products applied to lumber before drywall is hung—are the most effective and long-lasting. These treatments are mineral-based and considered more eco-friendly than traditional termiticides. Additionally, because they are mineral based, they don’t breakdown the way chemicals do. These products also help prevent mold and mildew. If you home is not yet constructed, talk to your builder and a pest company about having this treatment done. Long-term peace of mind is priceless.

Post-construction options include liquid perimeter treatments and termite bait stations, both of which we discuss below.

Once Subterranean Termites have infested a structure, the standard approach is a liquid perimeter treatment.

This involves digging a shallow trench around the perimeter of the home and applying a liquid termiticide as the trench is filled back in. Holes are then drilled every 12 inches into adjoining slabs – such as driveways and patios – to treat the underlying soil. Often termites infest homes through gaps in the slab where pipes enter, such as bathroom drains. And under kitchen sinks. In these cases, drilling through the slab in these areas may be necessary as well.

In homes where termites entered around pipes coming through the slab, holes may need to be cut into walls so the area around the pipes can be treated directly.
As you read this, if you are thinking: “Wow! That sounds expensive!” yes, you are correct on that.

Idea for prevention. Just like baits for ants, baits for termite enlist the target pest’s natural behavior to aid in prevention and control.

How bait stations work: Stations are installed around the perimeter of the home and filled with cellulose bait and your pest control company monitors them quarterly or annually. The bait used inside termite stations is typically an insect growth regulator – essentially a form of birth control. This is an ingenious method of control because it doesn’t kill the termites quickly. This means the whole colony is given time to feed freely on the bait. Having prevented the immature member of the colony growing into their next stage of life, the colony is unable to replace members of the colony as they die and the colony collapses.

Advantages:

• More eco-friendly than liquid treatments
• No drilling or trenching required
• Utilizes termites natural foraging behavior against them

For most homeowners in Port St Lucie, we recommend termite bait stations for prevention and liquid treatments if an active infestation is present.

Drywood Termites are treated using fumigation—also called tenting.

All people, pets, and food must be removed. A tent is placed over the structure, and a termiticide gas (typically sulfuryl fluoride) is injected inside. The home is sealed for 24–72 hours while the gas penetrates all wood in the structure.

This method is very effective but also quite costly ($2,000–$4,000+ for a typical home).

Important: Fumigation treatments only last as long as the tent remains on the structure. There’s no residual protection. The benefit is zero exposure to chemicals for occupants after the tent is removed. The downside? Your home is subject to reinfestation.

Some homeowners opt for spot treatments if the infestation is localized to a small area – a single truss in the attic – for example. Spot treatments are very hit-or-miss in terms of their effectiveness. For this reason, we at Green Pest Services decline to provide spot treatments for drywood termites in most cases. Tenting is the gold standard. Worth noting, we do not provide tenting treatments, so our perspective on this is not influenced by our own business interests. We are always honest with our clients and drywood termites are best treated by tenting even though that is not a service we ourselves provide.

We’re based in Tradition, on Tom Mackie Boulevard. We’ve been serving Port St Lucie, Palm City, and Martin County for years. We know the pests in this area  – not just from textbooks, but from seeing them every single day in homes just like yours.
When a homeowner in a new development calls about dirt piles near their baseboards, we know what we’re looking at before we even arrive. Big Headed Ants. Every time.
We don’t sell you services you don’t need. If it’s ants, we’ll treat for ants. If it’s termites, we’ll treat for termites. And we’ll explain the difference so you understand exactly what’s happening in your home.

What we offer:

• Free inspections for Port St Lucie and Martin County homeowners
• Accurate identification—ants vs termites vs beetles
• Quotes over the phone, no pushy sales visits
• Same-day or next-day service available
• Satisfaction guarantee on all treatments
• Licensed, insured, and experienced

We promise: if you call us about termites and it turns out to be Big Headed Ants, we’ll tell you. And we’ll provide you the right treatment – not just the most expensive one. treatment.