Powderpost beetles are a destructive breed of pest. They destroy wood, turning timber into piles of a fine, powdery substance.
Types of Powderpost Beetles
There are four types of Powderpost beetles in four distinct families: the Lyctidae, the Cerambycidae, the Anobiidae, and the Bostrichidae.
Adult powderpost beetles do not do much damage themselves. The powderpost beetle larvae, known as woodworms, however, are responsible for the majority of the damage associated with powderpost beetle infestations.
Powderpost Beetle Lifecycle
The woodworms (powderpost beetle larvae) create tunnels in wood, where they become pupae. The powderpost beetles, now adults, bore through the wood via circular tunnels and push out a fine powder.
Signs of a Powderpost Beetle Infestation
Adult powderpost beetles typically emerge in June, leaving pin-sized holes and/or pencil lead-sized holes in the surface of wood.
The woodworm brood (powderpost beetle larvae) that comes out of the holes created by the adult beetles, looks like a fine powder. This is where they go about their feeding (and cause damage to homes and other structures). These destructive feeding periods go on for many months, even though you may only spot an adult powderpost beetle once a year.
How to Spot a Powderpost Beetle
Adult powderpost beetles are small, measuring under a quarter of an inch. Black or red-brown in color, the powderpost beetle has a flattened shape.
Powderpost beetle larvae (woodworms) are cream or white in color and have dark brown heads.