European house borer: what to look for

Page last updated: Thursday, 12 October 2017 - 9:31am

Please note: This content may be out of date and is currently under review.

European house borer only affects dead dry pinewood such as dead pine trees, logs and dead branches on living pine trees.   EHB also affects untreated pinewood manufactured articles such as structural and non-structural timber. Look for evidence of tunneling, larvae and exit holes in pinewood.

Description

Eggs: The adult borer lays eggs into cracks and joints (batches of up to 120 eggs) on susceptable seasoned (dry) coniferous softwoods such as pine, fir and spruce.

Larvae: EHB larvae hatch from eggs and can live for 2-12 years (2-5 years in Western Australia). The larvae lives in tunnels or galleries in the wood. They are a creamy white colour with a rippled, elongated and cylindrical body, and enlarged flattened head. Larvae can grow up to 4cm in length.

EHB Larvae
European bouse borer larvae

Adult borer: Adult beetles are brownish-black to black and have a slightly flattened appearance.

The beetle’s wings are usually all black and may have distinctive white patches. On the top surface of the first body segment, behind the head, are two raised, black, shiny knobs like eyes.

Adults are 8-25mm in length with antennae about half as long as the body.

Male and female EHB beetles next to a five cent piece
Comparision of the male EHB beetle and the female EHB beetle

Contact information

Pest and Disease Information Service (PaDIS)
+61 (0)8 9368 3080

European house borer: what to look for