It can be quite difficult to ascertain whether woodworm are active or whether the damage and holes are historic, especially if you buy an item of antique furniture with signs of woodworm, or if you move into a new place and find some signs of woodworm. Aside from finding and identifying live or dead insects (see Types of Wood Boring Beetle) the main ways of telling if woodworm are active are:
- Fresh dusting or frassing under or next to the holes;
- You can see light coloured wood in the holes, which have sharp edges;
- Edges of wooden beams and joists are breaking away to reveal fresh, light wood underneath.
For ten tops on how to identify signs of woodworm, see 9 signs of a woodworm infestation