Economic impact of polyphagous shot hole borer <i>Euwallacea fornicatus</i> (Coleoptera: Curculionidae: Scolytinae) in Western Australia

Following the discovery of polyphagous shot hole borer Euwallacea fornicatus (Eichhoff) in Western Australia September 2021, we estimated likely economic damage that will result coming decades and return on investment eradication. A bioeconomic model was used to simulate insect's spread impact based additional urban commercial tree management costs. Two scenarios were examined, one which an eradication policy response initiated, it not. With no response, results indicated median costs would reach A$6.8 million per annum 30 years, with 98% these relating forests. We conclude funding currently proposed, involving A$45.0 over 3 not generate sufficient benefits offset short-term, but may produce net longer term.