Wood borers are tiny beetles whose larvae feed extensively on wood and destroy it. They damage wood at the larval stage for food. Once they turn adults, they eat their way into the wood and leave back holes that damage your furniture over a long period of time. If you spot any such holes in your wooden furniture, it is your first clue to get a treatment for wood boring beetles done.

You will also see a lot of wooden frass (powder) that keeps falling through tiny pin holes in your wooden surface is a symptom of wood borer attack/infestation. Wood borer infestations are far more likely to happen in areas with high humidity, such as poorly-ventilated crawl spaces.