FAQs
- Browning or discoloured needles.
- Sap accumulation or small holes in the bark.
- Thinning or dying tree canopies.
- Weakening of tree structures, leading to potential tree or branch collapse.
- Targeted removal and treatment of affected trees.
- Monitoring nearby trees to contain the spread.
- Educating the community and local contractors about the beetle.
- Reviewing environmental practices to improve resilience.
- Avoiding the movement of firewood, tree prunings, or timber from infested areas.
- Monitoring pine trees on your property for signs of infestation.
- Reporting any suspected infestations to the City or relevant authorities.
- Disinfecting tools used for pruning or cutting to prevent cross-contamination.
What is the 5-Spined Bark Beetle?
The 5-Spined Bark Beetle (Ips grandicollis) is a small, invasive pest that primarily attacks pine trees. It bores beneath the bark, disrupting the tree’s internal systems and causing significant damage that can lead to tree death.
Where has the 5-Spined Bark Beetle been found in the City of Armadale?
The beetle has been detected in Broadway Park, Piara Waters, affecting several Monterey Pine trees. Nearby areas, including Whitaker Turn and Columbia Parkway, are also being monitored due to their proximity to the infestation.
What are the signs of a 5-Spined Bark Beetle infestation?
Look for the following symptoms in pine trees:
How does the 5-Spined Bark Beetle spread?
The beetle spreads by flying short distances to nearby trees and through the movement of infested timber or plant material. It reproduces rapidly, completing up to four breeding cycles per year in favourable conditions.
What is the City of Armadale doing about the infestation?
The City has implemented a management plan that includes:
How can I help prevent the spread of the 5-Spined Bark Beetle?
You can assist by:
What should I do if I suspect an infestation?
If you notice signs of the 5-Spined Bark Beetle, report them to the City of Armadale or contact the Department of Primary Industries and Regional Development (DPIRD) Pest and Disease Information Service.
Can the 5-Spined Bark Beetle affect other types of trees?
No, this beetle primarily targets pine trees, particularly those already stressed by drought or other environmental factors.
How long will it take to manage the infestation?
The timeline depends on the severity and spread of the infestation. The City is working with experts to address the issue as quickly and effectively as possible, but ongoing monitoring and treatment may be required.
Who can I contact for more information?
For further information, email the City at info@armadale.wa.gov.au or contact DPIRD’s Pest and Disease Information Service on (08) 9368 3080.