What does a termite mud tube look like?

Termite mud tubes are pencil-width (1/4 to 1/2 inch) hollow tunnels made from soil, saliva, and excrement. They are rough and granular, crumble when touched, and typically run vertically from the soil up foundation walls.

How do I test if a mud tube is active?

Break a small section of the tube open. If termites are active, you will see live termites inside. Check back in 24-48 hours — active termites will repair the break. A repaired tube confirms active infestation.

What should I do if I find a termite mud tube?

Photograph it and call a licensed termite control company immediately. Do not spray it with over-the-counter insecticide — this kills surface termites but does not address the colony. Professional treatment is required.

Termite Mud Tubes vs Ant Trails: How to Tell the Difference

Back to Blog8 min readPinal County, AZ

Termite mud tubes and ant trails look similar to untrained eyes. Learn the key differences and why correctly identifying them matters for your Arizona home.