What People Mistake for Termites

Often mistaken for: Termite exit or emergence holes

Round holes in timber — typically 1–2mm in diameter with clean edges — are almost always wood-boring beetle exit holes, not termite activity. The furniture beetle (Anobium punctatum) and similar species emerge from timber as adults through these exit holes, leaving behind powdery, cream-coloured frass (boring dust). Termites do not create round exit holes — subterranean termite enters timber from concealed galleries and drywood termite uses tiny push-out holes to eject frass pellets (hexagonal, not powdery). A round clean hole is the definitive exit signature of a wood-boring beetle, not a termite. The distinction matters: beetle treatment and termite treatment are completely different programmes.

Often mistaken for: Termite frass

Coarse, irregular sawdust-like material near a timber element is characteristic of carpenter ant (Camponotus species) excavation, not termite frass. Carpenter ants do not eat wood — they excavate it to create nesting galleries, ejecting the material as coarse, fibrous debris containing insect body parts and soil. Drywood termite frass is distinctively different: very fine, uniform hexagonal ovoid pellets (approximately 1mm) that are all the same size and shape. If the material near the timber is irregular, contains different-sized particles, or includes visible insect fragments, it is almost certainly carpenter ant debris rather than termite frass.

Often mistaken for: Termite structural damage

Soft, discoloured, or spongy timber is not exclusively a sign of termite activity — it is often the result of moisture damage and fungal decay (wet rot or dry rot). The distinction is critical: moisture decay produces soft timber with a characteristic musty or mushroom smell and no insect activity; the wood fibres are degraded by fungi, not eaten by insects. Termite damage also produces soft timber, but the interior is excavated in galleries running along the grain, with thin intact walls between them. Pressing a screwdriver into moisture-decayed timber and into termite-damaged timber both penetrate easily — but moisture decay produces a spongy, crumbling texture while termite damage produces a hollow, papery void with intact gallery walls.

Often mistaken for: Termite swarmers (alates)

Winged insects near windows during summer are far more frequently flying ants than termite alates — and the two are commonly confused. Both swarm during warm, humid weather, both shed wings, and both appear in similar numbers. The distinction is in the body shape: ants have a narrow, pinched waist (the petiole); termites have a broad, uniform waist with no constriction. Ant antennae are bent (elbowed); termite antennae are straight. Ant wings are unequal in length (front wings larger than back wings); termite wings are equal length. The most reliable field check: if you can pick up a swarmer, look for the pinched waist — if present, it is an ant, not a termite.

Often mistaken for: Active termite infestation

Hollow-sounding timber is a valid termite indicator, but it can also be caused by past termite activity that was treated and is now inactive, by deliberate construction voids (hollow-core doors, acoustic panels, some timber cladding), or by natural checking and separation within solid timber sections. A past termite infestation that was treated correctly and that has been inactive for years will still produce hollow timber — the gallery system remains. The distinction between active and inactive damage requires checking for live termites inside the gallery (open the hollow area with a screwdriver and look for live workers or soldiers), fresh mud tube construction, and soil connection. Hollow timber alone is not confirmation of an active infestation.

Often mistaken for: Termite mud tubes

Not all mud-like material on walls is a termite mud tube. Wasp mud nests (dauber wasps and potter wasps are common in South Africa) are built from the same material and can appear on wall surfaces and structural elements. The distinction: termite mud tubes run as continuous channels from ground level up a vertical surface, following a consistent path toward a food source. Wasp mud nests are compact, irregular structures — typically egg-shaped or cylindrical — attached to a surface without a continuous upward run. Dirt dauber nests have a smooth exterior; termite tubes are rougher and flatter. If the mud structure does not run continuously from a ground or soil source upward, it is very unlikely to be a termite tube.