Battling the Polyphagous Shot-Hole Borer: Protecting Our Trees
The Department of Primary Industries and Regional Development (DPIRD) and local government authorities are currently engaged in a critical battle against the spread of the Polyphagous shot-hole borer (PSHB). These non-native beetles, accompanied by the symbiotic fungi Fusarium euwallaceae, pose a significant threat to our trees. With a vast array of host plants available, including Maple, Oak, Plane, Coral tree, Avocado, and Willows, urgent action is required to combat this destructive pest.
Tracking and Surveillance
In our efforts to combat the PSHB, you may have noticed surveillance traps placed strategically throughout the Town. These traps play a crucial role in locating areas where the pests are hiding. Unfortunately, there is currently no treatment available for infected trees. Thus, when an infection is identified, it becomes necessary to remove the affected material promptly. In some cases, pruning branches will suffice, but if the trunk is infected, the entire tree may need to be removed. The DPIRD coordinates these essential works and ensures that both the Town and affected residents are duly informed.
Collaboration for control
Recognising the urgency and severity of the situation, the DPRID recently engaged with the outdoor staff of the Towns of Mosman Park and Cottesloe to train them in identifying the PSHB. This collaboration enhances our collective ability to identify and control the spread of these destructive beetles, thereby safeguarding our tree population.
Local impact and tree removal
Thirteen trees throughout Mosman Park have been removed due to PSHB infestation to date. However, across the quarantine area, which includes 25 local government authorities, thousands of trees have already been removed, with hundreds more pruned. These numbers serve as a sobering reminder that further tree losses within our Town are likely with DPIRD having identified more infested trees requiring pruning or removal.
Requesting a replacement tree:
Should your tree be infected and require removal, the Town offers a solution. You can request a replacement tree from us, allowing us to work together in maintaining our community’s greenery and canopy cover. By replacing lost trees, we contribute to the restoration of our environment and ensure the long-term sustainability of our urban landscape.
The battle against the Polyphagous shot-hole borer is ongoing, with the DPIRD and local government authorities actively addressing the threat posed by these destructive beetles. Through surveillance, identification, and prompt removal of infected trees, we strive to protect our urban forest and mitigate the impact of this invasive species. By partnering with the community and residents, the Town aims to preserve the natural beauty and environmental resilience that defines our Town.
If your tree is infected and needs to be removed you can always request a tree from the Town. You can find the Tree request form at mosmanpark.wa.gov.au/streettrees
For further information, or if you suspect PSHB in your trees, the DPRID details are:
- Call 9368 3080
- Email firstname.lastname@example.org
- Upload a report to the MyPestGuideTM Reporter app
- More information at www.agric.wa.gov.au/borer
Together, let us safeguard our trees and preserve the green heart of Mosman Park.