Drywood vs. Subterranean Termites: What’s the Difference?

If youโ€™ve noticed signs of termite activity around your home, knowing whether youโ€™re dealing with drywood termites or subterranean termites is essential. Both species of termite can cause significant damage to wooden structures, but their habits, appearance, and treatment methods differ.

In this article, youโ€™ll learn the key differences between these two types of termites, the damage they cause, and the best treatment options to protect your home.

Key Takeaways

Field Guide ยท Texas

Drywood or subterranean termite?

Both termites feed on wood and both damage Texas homes. The tell is where they live and what they leave behind.

LowModerateHigh
No. 01

Subterranean Termite

Dark; needs soil contact


Damages wood
MarksBuilds mud tubes along walls and foundations and lives in soil contact.
WhereNests underground, traveling through mud tubes to reach wood.
NoteLeaves honeycombed, warped wood; the Formosan type spreads faster in warm Texas.
No. 02

Drywood Termite

Pale; lives in dry wood


Damages wood
MarksDrops dry frass pellets near cracks and lives entirely inside wood.
WhereInside wood such as walls, furniture, and windowsills, with no soil contact.
NoteLeaves hollow-sounding wood and small kick-out holes with pellet piles.
Reliant Pest Management has read Texas homes across Central and South Texas for years. A professional inspection confirms what is really there.
  • Drywood termites live inside wood, while subterranean termites live underground and travel through mud tubes.
  • Flying termites called swarmers spread both types, with Formosan termites causing faster damage in warmer climates.
  • Drywood termites leave pellet-like droppings and hollow wood, while subterranean termites create honeycomb patterns and mud tubes.
  • Pest control professionals offer inspections, fumigation, bait stations, and liquid treatments for long-term termite control.

Drywood Termites vs. Subterranean Termites

Drywood Termites vs. Subterranean Termites

While both wood termites can destroy wooden structures while they feed on cellulose, their behavior and nesting preferences set them apart.

Features Drywood Termites Subterranean Termites
Nesting Inside wood (walls, furniture, windowsills). No soil contact needed. Underground, traveling through mud tubes to reach wood.
Appearance Smaller, pale or tan. Transparent wings on swarmers (alates). Larger, dark brown or black. Swarmers (flying termites) have dark wings.
Signs of Infestation Dry frass (fecal pellets) near cracks and holes. Hollow-sounding wood. Mud tubes along walls and warped wood with blisters.

How Termites Spread

During spring and summer, drywood termites and subterranean termites spread through alates or swarmers, which are flying termites that leave mature termite colonies to form new colonies.

Certain species of termites, like Formosan termites, are more aggressive and cause faster damage. These termites are commonly found in warmer climates, including Florida and parts of Texas.

What Termite Damage Looks Like

Both types of termites cause structural damage over time, but the signs differ:

Drywood Termite Damage

Hollow-sounding wood, small kick-out holes, and piles of droppings (or excrement) that look like sawdust or tiny pellets.

Subterranean Termite Damage

Honeycomb-like patterns in wood, mud tunnels on walls or foundations, and warped or sagging wood with visible blisters. Their tunnels often follow the wood grain and can cause the wood to splinter or break apart.

How to Treat Drywood and Subterranean Termites

Drywood Termite Treatment

If you’re dealing with drywood termites, here are a couple of ways to get rid of them:

  • Fumigation: Whole-structure fumigation is the most effective way to eliminate an entire colony of drywood termites, including those hidden deep within the wood.
  • Spot Treatments: For localized infestations, injecting products directly into infested wood can eliminate termites in specific areas.

Subterranean Termite Treatment

When it comes to getting rid of subterranean termites, here are two effective treatment options to consider:

  • Termite Bait Stations: Installed around your homeโ€™s perimeter, bait stations like the Trelona Advanced Termite Bait System eliminate colonies by preventing worker termites from molting and spreading the bait within the termite nest.
  • Liquid Termite Treatment: A liquid barrier around your homeโ€™s foundation stops termites from entering. This treatment eliminates termites that come into contact with it and can spread through the entire colony via worker termitesโ€‹.

How to Prevent Future Termite Infestations

Besides keeping an eye out for termites, here are some ways you can help prevent an infestation:

  • Seal Crevices: Close cracks and gaps around windows, doors, and your homeโ€™s foundation to block entry points for swarmers.
  • Reduce Moisture: Fix leaky pipes, improve drainage, and use dehumidifiers to eliminate the moisture that they need to survive.
  • Store Wood Properly: Keep firewood, lumber, and other potential food sources away from your homeโ€™s foundation and off the ground.

When to Call a Pest Control Company for Termite Control

DIY treatments might give homeowners temporary relief, but professional pest control is the best way to get long-term results.

At Reliant Pest Management, we offer comprehensive termite inspections, bait station installation, fumigation, and liquid treatments. Our services come with a re-treat guarantee, ensuring your home stays protected from future infestationsโ€‹.

If you suspect a drywood termite infestation or subterranean termite infestation, contact us now.

 

Picture of Trey Clawson

Trey Clawson

Trey is a Certified Applicator and an Authorized Speaker in the State of Texas. He has a wife of 13 years that he is madly in love with and 3 kids that he adores. He likes bringing home random pest findings, like nests and such, and dissecting them with the kids at the kitchen table! (It's worth noting however, his wife is not too fond of him using the kitchen table...)
Picture of Trey Clawson

Trey Clawson

Trey is a Certified Applicator and an Authorized Speaker in the State of Texas. He has a wife of 13 years that he is madly in love with and 3 kids that he adores. He likes bringing home random pest findings, like nests and such, and dissecting them with the kids at the kitchen table! (It's worth noting however, his wife is not too fond of him using the kitchen table...)

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