Key takeaways
- Termites rarely show themselves; most people find out from a swarm or from damage uncovered during construction, according to the EPA.
- South Florida faces both subterranean termites in the soil and drywood termites living inside the wood, which hide in different ways.
- Formosan termites can hollow out living trees, weakening them and raising the risk of collapse in high winds.
- Infested wooden articles, such as furniture, let people carry West Indian drywood termites to new areas, per UF/IFAS.
- Thin mulch, a 6-inch inspection strip and irrigation kept 1 foot from walls make hidden activity easier to spot.
In this article
Termites are called silent destroyers because they eat a home from the inside while the outside looks normal. They avoid light and open air, travel through soil, mud tubes or the wood itself, and leave the painted surface intact. According to the EPA, termites rarely appear above ground, and most people only learn they have them when they see a swarm or find damage during construction.
In South Florida, that stealth is a bigger problem than almost anywhere else. Our warm, humid climate suits several of the most destructive termites in the world, and they hide in different ways. This guide explains where termites hide, the hidden dangers homeowners tend to miss and how to catch the silent destroyers before they cause serious harm.
Why South Florida Is Termite Country
UF/IFAS researchers name three invasive termites as the cause of most structural damage in Florida: the Formosan subterranean termite, the Asian subterranean termite and the West Indian drywood termite. All three are well established in South Florida, alongside the native eastern subterranean termite, which UF/IFAS reports statewide.
The trend is not reassuring. In 2016, UF/IFAS researchers projected that by around 2040, half of all structures in South Florida could be at risk of subterranean termite infestation, after finding that infested structures had grown exponentially since 1990. They also noted that the Miami-Fort Lauderdale area was then the only place in the continental U.S. where Asian and Formosan subterranean termites overlapped; a 2026 University of Florida study has since found the Asian species as far north as Brevard and Hillsborough counties.
For the cost side of this picture, read the economic impact of termites in South Florida.
How Termites Stay Hidden: Two Different Strategies
South Florida homes face two kinds of termites that hide in very different ways. Treatment is completely different too, so knowing which one you have matters. Our guide to drywood vs. subterranean termites goes deeper.
| Subterranean termites | Drywood termites | |
|---|---|---|
| Species here | Formosan, Asian, eastern subterranean | West Indian drywood and others |
| Where the colony lives | In the soil, with tunnels and mud tubes to wood | Entirely inside the wood they eat |
| How they reach your home | Up from the ground through tubes, cracks and joints | Swarmers land on wood, or infested furniture is brought in |
| Visible clues | Mud tubes, swarms, wings, blistered paint | Small, hard pellets piling up below wood, tiny kick-out holes, swarms |
| Hidden danger | Huge colonies feeding inside walls and trees | Colonies inside attic wood, trim and furniture |
Subterranean Termites: Hidden in the Soil
Subterranean termites nest underground and need moisture. Workers build pencil-width mud tubes to cross from the soil to wood without drying out. UF/IFAS notes that a colony of the native eastern subterranean termite may contain 100,000 to 1,000,000 termites and forage up to 150 feet, and that infestations are often hidden until remodeling. Formosan colonies can reach several million termites.
Drywood Termites: Hidden Inside the Wood
Drywood termites never need soil contact. According to UF/IFAS, West Indian drywood termites carve galleries across the grain of the wood and leave only a thin surface layer over the tunnels, so infestations usually stay hidden inside the wood. The main clues are hexagonal fecal pellets, which can be cream, red or black, and kick-out holes about 1 to 2 mm wide. Learn why this damage is so easy to miss in why drywood termite damage is harder to spot.
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The Hidden Dangers Homeowners Miss
Damage Behind Finished Surfaces
Termites hollow wood until it is paper thin. UF/IFAS describes blistered or peeling surfaces over hollowed wood as a classic warning sign, and both subterranean and drywood termites can leave paint and trim looking almost normal. Wall studs, door and window framing, roof trusses and cabinets can be damaged long before anything sags or sticks.
Hollowed Trees and Hurricane Risk
This is a danger many South Florida homeowners never consider. UF/IFAS reports that Formosan termite workers feed on the dead wood at the center of living trees and hollow them out. The tree may stay alive, but it becomes structurally weaker and more likely to collapse in high winds. A hollowed tree next to your roof is a hurricane hazard as well as a termite source, and UF/IFAS recommends inspecting trees near structures regularly.
Termites You Bring Home
UF/IFAS notes that the West Indian drywood termite’s tendency to infest wooden articles has made it easy for people to carry it to new areas. Antique furniture, used cabinets, wooden frames and lumber can all carry a colony. Our article on how drywood termites sneak into homes through furniture and wood trim explains what to check before you bring something home.
Moisture Problems That Feed Termites
Subterranean termites depend on moisture. UF/IFAS lists leaky plumbing and air conditioner condensate among the conditions to correct, and storm damage creates more of them. After a hurricane or heavy rains, roof leaks, wet walls and debris piles give termites what they need. See termites after the storm for what to do once the weather clears.
Early Warning Signs of the Silent Destroyers
Termites are silent, but they are not invisible. Watch for:
- Swarms of winged insects near lights or windows, especially in spring
- Piles of discarded wings on sills, floors and in spider webs
- Mud tubes on foundations, slab edges, block walls and tree trunks
- Small, hard pellets piling up below wood, furniture or attic trim
- Tiny kick-out holes in wood surfaces
- Blistered, bubbling or peeling paint over wood
- Wood that sounds hollow or that a screwdriver sinks into easily
- Doors and windows that start to stick without an obvious reason
The EPA notes that ant swarms are sometimes mistaken for termite swarms. Termites have straight antennae and wings of roughly equal length; ants have bent antennae and front wings longer than the back ones. For a closer look at the signs that appear indoors, read the silent signs of termites inside walls.
How to Make Your Home Harder for Termites to Hide In
You cannot stop every swarm, but you can make sure termites have fewer places to work unseen. UF/IFAS and the EPA recommend:
- Keep mulch thin. UF/IFAS advises less than 2 inches of mulch within 12 inches of the foundation, so the soil can dry.
- Leave an inspection strip. Keep about 6 inches between mulch and the siding or foundation so mud tubes are easy to see.
- Aim irrigation away from walls. Florida’s building code requires irrigation to be at least 1 foot from a building’s sidewall, according to UF/IFAS.
- Fix leaks promptly in plumbing, AC lines and roofs.
- Maintain gutters and downspouts and grade soil so water drains away from the foundation.
- Seal cracks in the foundation and gaps where utilities enter the walls.
- Keep firewood and wood debris away from the house, and keep plants from growing against exposed wood.
- Inspect secondhand wooden furniture before bringing it inside.
How Professionals Uncover and Stop Hidden Termites
Because termites hide so well, a trained inspector who knows where each species works is your best defense. Toro’s termite control service starts with a free inspection: a trained technician identifies the species and checks how far the damage goes. Then Toro recommends the option that fits:
- Sentricon baiting for subterranean termites, installed around the property with no drilling into the slab and no trenches, and designed to eliminate the colony, including the queen
- TORO-GUARD, a non-tenting injection treatment for localized drywood colonies, so you do not have to leave your home
- Tent fumigation when drywood termites have spread through the structure, treating walls, trim and furniture at once
Toro’s technicians are trained at the TORO Institute, Toro’s training facility at its Miami headquarters, with on-staff entomologists, and the work is backed by the 110% Satisfaction Guarantee. To learn more about the species behind the damage, start with our termite pest library.
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305-594-4767Frequently Asked Questions
Why are termites called silent destroyers?
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Sources
- Termites: How to Identify and Control Them, U.S. Environmental Protection Agency
- West Indian Drywood Termite, Cryptotermes brevis (EDIS IN236), UF/IFAS Extension
- Formosan Subterranean Termite, Coptotermes formosanus (EDIS IN278), UF/IFAS Extension
- Native Subterranean Termites: Reticulitermes flavipes, R. virginicus, R. hageni (EDIS IN369), UF/IFAS Extension
- The Facts About Termites and Mulch (EDIS IN651), UF/IFAS Extension
- Half of South Florida Structures at Risk of Subterranean Termite Infestation by 2040, UF/IFAS News
- New Study Shows Invasive Termites Threatening Homes in Florida Are Spreading Farther Than Predicted, University of Florida News
Educational content. This article is for general information about pests in South Florida and is not medical, legal or professional advice. If you have a bite, sting or allergic reaction, contact your doctor; in an emergency, call 911. Pest problems vary from home to home, so a licensed professional should inspect before treatment. When using any pesticide, always read and follow the product label.
