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Lagarosiphon in a waterway.

Lagarosiphon is an invasive aquatic weed established in some of Marlborough’s lowland waterways as likely result or historical dumping of aquarium contents. Marlborough District Council is aware that this species poses a risk and is supporting research into any opportunities for biological control as they arise.

Marlborough District Council and/or Department of Conservation welcome any information about the occurrence of this plant. Land occupiers are encouraged to control infestations. Lagarosiphon is also an unwanted organism under the Biosecurity Act 1993 given it is on the National Pest Plant Accord list of species banned from sale, propagation, distribution or commercial display.

Go to the National Pest Plant Accord list

Should you see this plant please report it to the Marlborough District Council.

Go to the Department of Conservation website

Go to the Weedbusters website for further information, control tips and images