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Subterranean termites are the most destructive wood pest in Florida — causing an estimated $1+ billion annually in US damage. Native subterranean termites are widespread; Formosan termites cause even more rapid damage. Here is the Florida guide.
How to identify subterranean termites
- 1/8 to 3/8 inch long depending on caste.
- Workers: cream-colored, soft-bodied.
- Soldiers: tan head with large brown jaws.
- Reproductive swarmers: dark with two pairs of equal-length wings.
- Often confused with flying ants — termites have straight antennae and equal wings; ants have elbowed antennae and unequal wings.
Signs of subterranean termite infestation
- Mud tubes on foundations, walls, or pipes (most common indicator).
- Discarded wings near windowsills or light fixtures after spring swarm.
- Soft, hollow-sounding wood when tapped.
- Damaged wood with mud or soil packed inside galleries.
- Sagging floors or ceilings in advanced infestations.
Florida termite season
Spring (March-May) is peak swarming season. Native subterranean termites swarm during day; Formosan termites swarm at dusk near lights.
DIY vs Professional decision
DIY makes sense if
- You see active termites in a small area only.
- Damage is limited to one localized spot.
- You can apply Taurus SC or Termidor SC perimeter treatment yourself.
Hire a pro if
- Mud tubes are throughout the structure.
- You suspect Formosan termites (faster damage).
- Damage is structural (floor joists, wall studs).
- You want a transferable warranty for home sale.
- Your home requires bait stations or fumigation.
DIY treatment with Taurus SC
Trench around foundation 4-6 inches deep, mix Taurus SC with water, pour into trench, backfill. Creates a treatment zone that worker termites traffic through and carry back to colony.
Cost reality
- DIY perimeter treatment: $200-$500 in materials.
- Professional liquid treatment: $1,200-$2,500.
- Sentricon bait system: $1,500-$3,000 install + annual monitoring fee.
- Tenting/fumigation (drywood termites only): $2,500-$5,000.
Verdict
For minor subterranean termite activity, DIY Taurus SC perimeter treatment is reasonable. For widespread infestation, suspected Formosan termites, or any structural damage, hire a Florida-licensed pest control company with termite warranty.
Reminder: Always read product labels and follow manufacturer safety instructions. For dangerous pests or large infestations, hire a licensed professional.