Blog Post
New UF/IFAS Study: Invasive Termites Are Spreading Faster Than Predicted, and South Florida Is Ground Zero
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What the study actually says
According to coverage of the new UF/IFAS research published this morning, invasive Formosan and Asian subterranean termites are projected to put nearly all of Florida at risk within the next two decades, with the densest current activity remaining in South Florida.
The two species at the center of the study are not the termites most longtime Florida homeowners grew up dealing with. The Formosan subterranean termite (Coptotermes formosanus) was first detected in Florida in the 1980s. The Asian subterranean termite (Coptotermes gestroi) followed in the 1990s. Both species build colonies that can reach into the millions, both cause structural damage on a compressed timeline compared to native subterranean termites, and both are now well-established across Palm Beach County, St. Lucie County, and the surrounding region.
The Chouvenc research team has been tracking the geographic spread of these species since they first arrived. The 2026 update confirms that the spread is accelerating, and that hybridization between Formosan and Asian subterranean termites is now documented in multiple South Florida counties.
Why South Florida is ground zero for invasive termites in Florida
The geographic pattern is not random. Both species arrived through coastal ports of entry, established initial populations in the warm, humid climate of South Florida, and have been expanding from those original beachheads ever since.
Palm Beach County and the Treasure Coast sit inside the densest established activity zones in the entire state. UF/IFAS Fort Lauderdale Research and Education Center maintains an active termite distribution map showing established populations of Formosan and Asian subterranean termites across Boca Raton, Boynton Beach, Lantana, Port St. Lucie, Stuart, and most of the surrounding region. The map has been updated continuously as new colonies are documented.
What that means in practical terms is that homeowners in Palm Beach County and the Treasure Coast are not experiencing the early stages of an invasive species problem. They are experiencing the mature, established phase of the problem the rest of the state is just starting to face.
What this looks like for an actual South Florida homeowner
This is the conversation that happens in Palm Beach County and Treasure Coast households every spring, and it is the on-the-ground version of the spread the UF/IFAS data is documenting. Activity that was not detectable a few months ago can become visible the moment a mature colony nearby starts swarming. A previous clean inspection is not evidence that nothing is happening now. It is evidence that nothing was visible at the time of that inspection.
Three things matter most when this kind of activity shows up at your home.
First
Do not throw away or crush the swarmers. Capture a few intact specimens in a sealed plastic bag or small jar. Proper species identification is the difference between an effective treatment and a wasted one. Drywood termites, Formosan termites, and Asian subterranean termites all swarm in spring, and each species calls for a different treatment approach. A pest professional needs intact specimens to make the call accurately.
Second
Understand what your existing service contract actually covers. Termite spot treatments, the kind that target a specific localized infestation, generally do not carry a warranty against new colonies establishing elsewhere on the property. New activity on a previously treated home is not necessarily a failure of the original treatment. It can be evidence of a separate colony that has now reached the structure from a different angle. The right response is a fresh inspection and a new assessment, not an assumption that the prior treatment failed.
Third
Recognize when the situation has escalated past spot treatment. Repeated swarms inside the home, activity in multiple rooms, or visible damage in more than one area of the structure usually signal the need for a more comprehensive approach. Whole-structure fumigation is the standard recommendation when drywood termite activity becomes widespread or recurrent.
What this means for South Florida homeowners
The damage timeline matters because it changes the urgency calculus. A mature Eastern subterranean termite infestation in a South Florida home might cause meaningful structural damage over a decade. A mature Formosan or Asian subterranean infestation can cause severe structural damage in three to five years. The window between detection and serious consequences is dramatically shorter for the invasive species.
This is why annual inspections matter more in this region than they do elsewhere in Florida, and far more than they do in most of the country.
What the research suggests homeowners should do
The UF/IFAS recommendations have been consistent across the past several years of research updates. The new study reinforces them rather than changing them.
Schedule annual professional termite inspections, particularly if your property has not been inspected in the last 12 months. Take any swarm event seriously, whether daytime or nighttime, by collecting samples and documenting the location before contacting a professional. Reduce non-essential exterior lighting between 8pm and midnight during peak swarm windows in spring and early summer. Address moisture issues near foundations and around the structure. Maintain wood-to-soil separation around the perimeter.
These steps do not eliminate exposure. Nothing eliminates exposure in the densest established invasive termite zone in Florida. What they do is dramatically improve the odds of catching activity before it becomes structural.
If your property has not been inspected in the past year, this week is the right week to schedule.
We Have Two Convenient Locations:
Lantana Office
1177 Hypoluxo Rd Suite C-31 Lantana, FL 33462 (561) 727-8239
Port St Lucie Office
464 NW Peacock Blvd, Unit 106 Port St Lucie, FL 34986 (772) 783-4300
Sources:
Click Orlando — coverage of new UF/IFAS research projecting invasive termite spread across Florida within two decades
UF/IFAS Fort Lauderdale Research and Education Center — termite distribution mapping and Chouvenc research team monitoring data
UF/IFAS — termite distribution mapping tool tracking invasive species activity zones across Florida