Woodworm is a common term for the larvae of various species of beetles that infest and consume wood, causing significant damage to wooden structures and furniture. Understanding woodworm, its lifecycle, signs of infestation, and methods of prevention and treatment is crucial for preserving the integrity of wooden items and structures.

What is Woodworm?

Woodworm refers to the wood-boring larvae of beetles, particularly the Common Furniture Beetle (Anobium punctatum), the Deathwatch Beetle (Xestobium rufovillosum), and the House Longhorn Beetle (Hylotrupes bajulus). These beetles lay eggs on or just under the surface of wood, and when the eggs hatch, the larvae burrow into the wood, feeding on it and creating tunnels.

Lifecycle of Woodworm

The lifecycle of woodworm consists of four stages:

  1. Egg: Adult beetles lay eggs on the surface or in the cracks of wood.
  2. Larva: Upon hatching, the larvae burrow into the wood, feeding on it for several years, causing structural damage.
  3. Pupa: After the larval stage, the woodworm pupates near the surface of the wood.
  4. Adult Beetle: The adult beetle emerges from the wood, leaving behind a characteristic exit hole. The adults then reproduce, and the cycle begins again.

Signs of Woodworm Infestation

Detecting woodworm early can prevent extensive damage. Common signs include:

  • Exit Holes: Small, round holes in the wood https://www.shashel.eu/carcoma surface, typically 1-2mm in diameter, indicate where adult beetles have emerged.
  • Bore Dust (Frass): Fine, powdery dust found around the holes or beneath infested wood.
  • Tunnels: Internal damage in the form of tunnels or galleries within the wood.
  • Weak or Damaged Wood: Wood that feels weak, crumbly, or shows signs of structural damage.

Preventing Woodworm Infestations

Prevention is key to avoiding woodworm infestations. Effective measures include:

  • Control Moisture: Woodworm thrives in damp conditions, so keeping wood dry and well-ventilated can deter infestation.
  • Treat Wood: Use insecticides or wood preservatives to protect vulnerable wood from infestation.
  • Inspect Wood: Regularly inspect wooden structures and furniture for signs of woodworm.
  • Proper Storage: Store wooden items in a dry, well-ventilated environment.

Treating Woodworm Infestations

If an infestation is detected, prompt treatment is necessary:

  • Chemical Treatments: Insecticidal sprays and wood preservatives can kill larvae and prevent further infestation.
  • Freezing: For smaller items, freezing the infested wood can kill woodworm larvae.
  • Professional Help: Severe infestations may require professional pest control services to assess and treat the problem effectively.


Woodworm can cause significant damage to wooden structures and furniture if left unchecked. Understanding the lifecycle, identifying signs of infestation, and implementing preventive measures are crucial steps in protecting wood from these destructive pests. In the event of an infestation, prompt and effective treatment can mitigate damage and preserve the integrity of the affected wood. By staying vigilant and proactive, homeowners and caretakers can safeguard their wooden possessions from the threat of woodworm.


By Admin