(adapted from the Project Platypus Newsletter)
Project Platypus is working closely with Halls Gap and surrounding communities to control the spread of Kunzea Leptospermoides (Yarra Burgan) and the threat it imposes on the Grampians National Park and surrounding reserves.
Yarra burgan (Kunzea leptospermoides, previously K. ericoides) is a tall (2-5 [<15]m) native shrub originating from eastern Victoria and the NSW coastal hinterland. It is not indigenous to Halls Gap or the Grampians National Park. Yarra Burgan was introduced to the region as an ornamental garden plant and has since spread forming dense thickets which are a biodiversity threat and fire hazard.
Yarra burgan was initially thought to be a similar species, Kunzea ericoides, from New Zealand, but studies revealed it as an Australian native. It is a highly successful species in part due to changes in climate and hybridization. Yarra burgan looks very similar to the local Prickly Tea Tree (Leptospermum continentale) masking the problem as it looks to belong in the landscape. Its ability to out compete local native plants enables it to take over with grave implications for the surrounding Grampians National Park natural values.
Why remove Yarra Burgan?
- To avoid it proliferating and invading new areas.
- To maintain the beautiful natural values of local plants and animals.
- It represents a serious fire risk, far greater than endemic local vegetation.
- it prevents local species from establishing with implications for
- Insects and animals dependent on the local flora.
- Thickets 4 m high present high fuel loads with potential for increased wildfire severity.
- Infestations into the Grampians National Park threatens conservation significance.
- In the long term, as an invasive species, it will dominate the Grampians.
- Flow on effects for local tourism dependent on the natural park values to attract tourists.
This plant was first bought to our attention by a former Parks Vic ranger in the Grampian’s National Park who was concerned about what he was witnessing around 6 years ago. We have utilised some funding in the past to conduct some initial trial treatments and initial mapping, but the current lot of funding from RE Ross Foundation allows to focus on controlling the plant for the next three years. Project Platypus would like to thank R E Ross Foundation, all the landholders and project partners that have allowed us to map and treat the spread of Yarra Burgan. The work achieved so far has been beyond what we expected to achieve. This has largely been because of a small group of landholders that have not only allowed for us to treat it on their property, but because of the hard work they have assisted us in by contacting absentee landholders and championing the message. We have been using men from the Hopkins Correctional Facility in Ararat to do the work.
Project Platypus is worked with the Northern Grampians Shire Council and Halls Gap Community groups to get on ground works underway and look into town action plans and fire mitigation plans to have the plant identified as one of concern for the area.
It is still mainly around Halls Gap but smaller infestations have been found on the Ararat-Halls Gap Rd through to Ararat, with large infestations around Trajul Rd and Pomonal.
Anyone wanting more information on this plant and project please contact Lachlan McIntyre on 5358 4410 or 0409 740 521 or via email