Water hyacinth found in urban lake
8 July 2019
One of the world’s worst weeds, water hyacinth, has been found and treated in the ‘Waterways’ estate in Melbourne’s south east.
Agriculture Victoria Biosecurity Officers removed 14 plants from Sunset Lagoon, one of the constructed lakes on the estate.
A Weed Spotter* volunteer reported the infestation to Agriculture Victoria, enabling officers to treat the infestation before it had begun to spread.
High Risk Invasive Plants Biosecurity Manager, Angela Constantine, said Agriculture Victoria would continue to monitor the site for many years to ensure it stays free of the aquatic weed.
“Water hyacinth is a highly invasive aquatic weed. The plant grows rapidly, forming a dense, impenetrable mat on the water’s surface that can reduce water quality, devastate wetlands and displace native aquatic species.” she said.
“In just one season, a single water hyacinth plant can produce more than 3000 seeds that can survive for up to 20 years.
“Therefore, it is very important to prevent water hyacinth from entering or establishing infestations in our waterways.
“Water hyacinth can be identified by its distinctive mauve flower and bulbous spongy stems. Often kept for its very attractive flower, owners may be unaware of the profound threat it poses.”
Anyone who may have seen water hyacinth plants, or may potentially have it in their possession, is urged to contact Agriculture Victoria on 136 186 and not attempt to remove the plants themselves.
Agriculture Victoria will remove any water hyancinth plants found at no cost to the land owner.
* The Weed Spotter network is made up of members of the public who play a key role in detecting State Prohibited Weeds in Victoria, learn more about Weed Spotters.
Contact Name: Helen Vaughan
Contact Number: 0409 255 140
Categorised under: Biosecurity