Nursery paper: the effect of the polyphagus shot hole borer on the WA nursery industry (September 2025)

13 October 2025

The Polyphagus shot hole borer (PSHB), Euwallacea fornicates, is an invasive beetle species that has become a significant pest within Western Australia. Since its detection in the Perth suburb of East Fremantle, the beetle has spread to other areas of the Perth metropolitan area.

Originating from Asia, PSHB has rapidly established itself across various regions, causing considerable concern for the local nursery industry. Its impact is multifaceted, affecting plant health, industry economics, and biosecurity measures.