The most common wood boring insect attack in soft wood structural timbers, plywood and furniture is the 'Common Furniture Beetle' which accounts for over three quarters of all forms of woodworm infestation in Britain. The first signs of woodworm in timber are the neat round exit holes, about 2mm across which are, if active, accompanied by small piles of white/cream wood dust beneath the holes. One of the best known beetles is the 'Death Watch Beetle'. It has the same life cycle as the furniture beetle, but the grub is much larger (4mm) and burrows through the wood for anything up to 10 years. Death Watch Beetle primarily attacks hardwoods, such as oak beams. Frequently found in sapwood and timbers that have suffered damp penetration or fungal decay.
Another common woodworm beetle is the Wood Boring Weevil which again attacks timbers that have suffered from damp penetration and fungal decay. Susceptible timbers to this infestation are ground floor timbers in close proximity to damp walls and earth oversights.