Rous has been alerted to a significant infestation of the highly invasive weed, Frogbit, at Banora Point in the Tweed Shire and is asking for the community’s help to ensure it does not take hold in the region.
Frogbit (Limnobium laevigatum) is a fast-growing aquatic plant that poses a serious threat to local ecosystems. It forms thick mats across the surface of freshwater systems, obstructing sunlight, reducing oxygen levels, and severely impacting native aquatic life.
The plant also clogs stormwater infrastructure and irrigation systems, creating additional environmental and economic risks.
Rous was notified of the incursion by Tweed Shire Council who share similar concerns for this outbreak considering how invasive and potentially detrimental it can be to local surrounds, according to Rhett Patrick, Weed Biosecurity and Bush Regeneration Manager at Rous.
“Left untreated, Frogbit spreads quickly and has the potential to choke our region’s waterways,” said Mr Patrick.
“As soon as Rous was alerted to the infestation, our Weed Biosecurity Officers took immediate action to contain it.
“Thankfully, by working closely with the community and our partners, we have been able to ensure that Frogbit continues to not become established in the Northern Rivers region.
“However, we must remain vigilant and continue to remove any new growth before it takes hold, which is why we are asking local residents to report possible sightings to Rous.”
Frogbit is a prohibited plant in NSW. It is illegal to buy, sell, trade, or move this species within or into the state. While it may still be sold legally in some other states, it must not be brought across the border into NSW. Selling Frogbit online or in person in NSW is an offence and may lead to significant penalties.
Preliminary investigations conducted by Rous suggest the recent infestation in the Tweed Shire may have resulted from the improper disposal of unwanted Frogbit into the waterway.
“We understand that NSW residents may have purchased Frogbit not realising it is classified as prohibited matter,” said Mr Patrick.
“If NSW residents are in possession of Frogbit, we encourage them to notify the Rous Weed Biosecurity Team who will dispose of it properly for you.”
Rous has launched a public awareness campaign asking for the community’s help by reporting possible sightings of the ‘priority weeds’ they are targeting in the region – including Frogbit.
For further information, visit: https://rous.nsw.gov.au/targeted-weeds.
