What do termites eat?

Saturday, September 29, 2018

Most people know that termites can invade inside the walls of a home and munch away at the wood, causing major structural damage. But what they are really after is the cellulose component of the wood. Cellulose is a major part of the cell wall of plants and the most abundant organic compound in the world.

   Termites also eat paper—because it is a wood-based product containing cellulose—along with the wood parts of any furniture that they can get into. So it’s important to check any used furniture you buy at an auction or yard sale for evidence of termite infestation before bringing it into your home.

   An array of symbiotic microorganisms living in a termite’s gut help it to process the cellulose. Fungi, bacteria, and protozoa begin the process, after which the termite completes the digestion.

   Termites will chew through any material that is softer than their hardened mandibles, such as plastics and drywall, to get at cellulose behind it. This may be why there are popular misconceptions that termites eat substances that are not cellulose-based.

   Although everyone wants to keep termites out of their houses, they are an important part of the earth’s ecosystem, recycling plant material back into the soil. If you come across a fallen tree trunk in the woods that appears to be rotting away and pull away a top chunk of the deteriorated wood, you will likely see a cluster of annoyed tiny, white termites that will immediately begin scurrying deeper into the wood. They work in unison with fungi and other insects to return the wood to the soil.

   On a recent vacation in Mexico we came across a large above-ground termite nest, called a “carton,” wrapped around a rotting tree trunk at a tropical forest in a seaside national park in Cancun. The photos below show the carton and also a close-up of a cluster of termites at an opening.

    Also, see our blog posts Do termites eat concrete? and Do carpenter ants cause structural damage to houses in Florida? 

• • • • • • • • • • • • • • • • • • • • • • • • • • •  

To learn more about termites, see these other blog posts:

Should I be worried about termites if my neighbor's house is being tented?

Is the WDO (termite) inspector allowed to poke holes in my wood siding and trim? 

How long before closing can you have a WDO (termite) inspection done?

How long does Bora-Care® last? 

 Why is it a mistake to store lumber in the crawl space under a house?

Does the presence of carpenter ants in a house indicate that there are probably also termites? 

How do termites infest a house and remain hidden while doing major damage?

Are homes in Florida required to have termite protection? 

If termite damage appears to be old, does that mean that termites may no longer be present?

How do I know if my WDO/termite report is "clear"? 

When do termites swarm in Florida?

Does a recent termite company inspection sticker mean there are no termites? 

Can a mobile/manufactured home get termites?

Do I have to tent the house if I have termites? 

What is the difference between a subterranean termite and a drywood termite?

What are the green plastic discs in the ground around the house? 

What is a termite shield?

How do termites get into a concrete block house? 

What is a clean WDO?  

How do I treat wood rot  that's listed in my termite-WDO report? 

Do I really need a termite-WDO inspection? 

What's causing those holes in the fascia?

Does wood chip mulch in the yard attract termites?

I think I have termites. What does a termite look like?

I'm buying a concrete block house. Do I still need a termite inspection? 

• I saw a little termite damage on the baseboard. Should I be concerned?

   Visit our TERMITES, WOOD ROT AND PESTS page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.  

Top Photo - USDA - Wikipedia Commons

How To Look At A House

McGarry and Madsen's home inspection blog for buyers of  

site-built, mobile/manfuactured and modular homes






Air Conditioner & Furnace Age/Size




Aging in Place


Click Below  

for Links

to Collections

of Blog Posts

by Subject


Doors and Windows


Energy Efficiency

Fireplaces and Chimneys

Heating and Air Conditioning

Home Inspection

Hurricane Resistance

Electrical Receptacle Outlets

Electrical Panels

Garages and Carports

Common Problems

Exterior Walls & Structures



Life Expectancy

Mobile/Manufactured Homes

Older and

Historic Houses

Mold, Lead & Other Contaminants

Modular Homes

Metal Roofs



Pool and Spa

Roof and Attic




"Should I Buy A..."


Termites, Wood Rot

& Pests

Structure and Rooms


Water Heaters

Water Heater Age

Septic Tank Systems

Plumbing Pipes


When It First

Became Code

Park Model Homes

Shingle Roofs


Wind Mitigation Form

"Does A Home


"What Is The Difference Between..."


Concrete and

Concrete Block


Rain Gutters


Crawl Spaces

Building Permits

Clay Soil




HUD-Code for

Mobile Homes

Flat (Low Slope) Roofs

Sprinkler Systems

4-Point Inspections

Frequently Asked Questions (FAQ)

Building Codes

Inspector Licensing

& Standards

Washers and Dryers



Electrical Wiring

Plumbing Drains

and Traps

Smoke & CO Alarms

Top 5 results given instantly.

Click on magnifying glass

for all search results.



Electrical Switches


Water Intrusion

Electrical - Old

and Obsolete

Foundation Certifications

Tiny Houses