Does woodworm make noise when chewing wood?

Yes. Larger larvae, such as the house capricorn (Hylotrupes bajulus), make an audible rhythmic clicking sound in complete silence at night. Subterranean termites do not generate perceptible chewing noise except for alarm vibrations.

Do termites leave sawdust on the ground like woodworm?

No. Subterranean termites never expel sawdust outside because they consume the cellulose entirely and use their feces to make protective 'mud chimneys'. The small pile of fine sawdust on the floor or on a piece of furniture is an exclusive symptom of woodworm.

How do you know if a wooden beam is affected by termites?

The beam usually retains a thin intact outer layer of varnish, but when pressed with a screwdriver or the thumb, the wood easily gives way, revealing hollow galleries filled with earthy remains and an absence of loose sawdust.

What treatment is most effective against subterranean termites?

The bait system with chitin inhibitors (hexaflumuron or diflubenzuron). The workers transport the bait to the underground termite mound and feed the queen and the soldiers by trophallaxis, causing the collapse of the parent nest.

Difference between Woodworm and Termites: Damage Guide

Diagnóstico de daños por termitas y carcoma en vigas de madera en Alicante

Xylophagi in the architectural heritage of Alicante: an invisible threat

Quick Answer (AEO):

Woodworm is a beetle larva that leaves visible holes in wood and expels fine sawdust. The termite is a social underground insect that does not make external holes or leave sawdust, emptying the interior of the beams until causing their structural collapse.

In the province of Alicante, historical constructions coexist with wooden floors in neighborhoods such as the Old Town of Alicante (Santa Cruz), Raval de Elche, Alcoy, Orihuela and a multitude of rustic houses and chalets. In this environment, xylophagous insects represent the quietest and most destructive threat to built heritage.

The widespread confusion between woodworm and termites is responsible for erroneous interventions that allow the progression of serious structural pathologies. While woodworm is usually limited to localized or cosmetic damage that progresses slowly over decades, subterranean termites form supercolonies of hundreds of thousands of individuals capable of removing the heads from a building's girders in a matter of months.

To determine the relevant biocidal restoration or consolidation technique under the UNE-EN 599 and UNE 56418 standards, it is essential to distinguish the biological nature of each organism.

Woodworm: biological characteristics and signs of presence

Under the common name of "woodworm" are grouped various families of coleopterans (beetles) whose larvae feed on the sapwood of wood:

Anobids (common furniture woodworm - Anobium punctatum): Larvae of 3 to 5 mm that attack both hard and soft dry woods. They generate perfect circular exit holes of 1.5 to 2 mm in diameter and expel a very fine sawdust, similar to baking flour.
Cerambicids (domestic capricorn - Hylotrupes bajulus): Large larva (up to 30 mm) that colonizes coniferous woods (traditional beam pine). It causes oval perforations of 6 to 10 mm and its jaws emit a clearly audible crunching sound. Its sawdust contains small compact cylindrical specks.
Lyctids (wood moth - Lyctus brunneus): It exclusively attacks hardwoods rich in starch (oak, chestnut or exotic parquet). It reduces the interior to an impalpable powder similar to talcum powder.

Subterranean termites: the hidden danger of Reticulitermes

The termite present in the Iberian Peninsula (mainly Reticulitermes banyulensis and Reticulitermes grassei) is an isopterous insect biologically related to cockroaches, not to ants. They have a complex social organization divided into castes: queen, king, big-headed soldiers with defensive jaws, and blind, sterile workers who do all the foraging work.

Unlike woodworm, termites do not live in affected wood. Their nurse nest is located underground, often at depths of several meters or tens of meters away from the home. From there they ascend looking for moisture and cellulose, penetrating through concrete expansion joints, electrical conduits or cracks in load-bearing walls.

As the workers become dehydrated in the dry air, they build "progression channels" or mud chimneys made of saliva, sand and excrement that they climb up the walls looking for wooden elements. They never pierce the outer light-facing surface; They leave a millimeter sheet of varnish or paint intact to maintain the humidity of the interior chamber.

Comparative table: Critical differences between Woodworm and Termites

Differentiation Parameter	Woodworm (Wood-boring Beetles)	Subterranean Termites (Reticulitermes)
Insect Type	Solitary beetle larvae	Social subterranean colony organized in castes
Surface Exit Holes	Abundant and visible (round or oval holes)	Non-existent (wood surface remains visually intact)
Presence of Sawdust / Frass	Yes, fine powdery piles expelled under timber	Never; clean galleries lined with earthen mud tubes
Internal Galleries	Independent tunnels packed with compressed frass	Interconnected hollow galleries lined with mud shelter tubes
Shed Wings Found	No massive swarming flights in spring	Yes; hundreds of dark wings shed after spring nuptial flights
Structural Risk	Slow, progressive decay over decades	Critical and rapid; imminent danger of structural collapse

Professional detection and treatment technologies

To diagnose xylophages without carrying out destructive tastings on heritage elements, state-of-the-art equipment is used:

Digital acoustic detection: Highly sensitive piezoelectric sensors that amplify the vibration and sound of the larval jaws inside the pieces.

Georadar and infrared thermography: Thermal cameras that detect temperature gradients associated with the concentration of biological humidity and voids within pillars and solid walls.

For woodworm, the reference treatment consists of the injection of protective biocides under pressure using non-return valves (retainers) inserted into the wood every 25 cm, combined with surface spraying of highly penetrating self-regulating gels. In termites, the only method that eradicates the entire colony is the installation of underground and aerial bait stations with chitin synthesis regulators, eliminating the parent termite mound by trophallaxis.

To assess an on-site structural diagnosis of your home, consult our termite and woodworm control service in Alicante or review the rates and price factors for wood treatments.

ROESB Accredited Intervention

Do you suspect woodworm or termites in furniture, flooring or beams?

Acoustic inspection with thermal radar technology and deep pressure injection of biocidal gels with non-return valves.

View Official Treatment: Termite & Woodworm Control in Alicante

Attention: Confusing Termites with Woodworm Can Cost You Thousands of Euros

Woodworms make visible holes with sawdust, but subterranean termites eat the wood from within, leaving an intact surface layer that appears healthy until broken with the fingers. Applying woodworm insecticide on a termite attack is completely useless.

The Risk of Home Remedies

Confusing the species causes the home treatment to fail.
Topical poisons do not stop the advance of the subterranean termite mound.
Risk of collapse of beams and door frames.

Approved Professional Solution

Accurate diagnosis of species by biologists and level 3 technicians.
Priming systems with chitin inhibitors that destroy the queen.
Non-destructive acoustic inspection.

Leave the brown to us: don't risk the roof of your home. Make an appointment for a professional technical inspection. Consult our diagnosis and control of termites and woodworm for more technical details or request a quote without obligation.

Difference between woodworm and termites: visual identification, sawdust and structural damage