Lagarosiphon
Lagarosiphon major
See it - Report it
Early detection is vital to stop Lagarosiphon becoming established in South Australia.
If you see this weed, please report it to the National Pest Alert Hotline (Freecall) 1800 084 881.
Weed profile
Perennial
Reportable
Hinders movement- Habitat: waterways
Impact
Blocks streams, lakes and reservoirs.
Description
- Aquatic, freshwater perennial herb.
- Free floating in deep water.
- Submerged stems with roots at lower nodes.
- Leaves are narrowly oblong and curved back, alternately arranged in a spiral on the stem.
- Flowers not found.
Control options
Mechanical removal
Situation: Aquatic habitats
Timing: Summer
Comments: Dredge plants out of water and dispose by composting or drying. Seek advice from regional landscape board first. Monitor site and undertake follow up control until eradication has been achieved.
Legal requirements in each region
Land owners in this region to eliminate the plant from their property. Enforceable by the Alinytjara Wiluṟara Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Alinytjara Wiluṟara Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Eyre Peninsula Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Eyre Peninsula Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Green Adelaide Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Green Adelaide Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Hills and Fleurieu Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Hills and Fleurieu Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Kangaroo Island Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Kangaroo Island Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Limestone Coast Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Limestone Coast Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Murraylands and Riverland Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
Must not be imported into the region.
land owners in this region must notify the Murraylands and Riverland Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the Northern and Yorke Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
land owners in this region must notify the Northern and Yorke Landscape Board of any infestation of the plant found on their land.
Land owners in this region to eliminate the plant from their property. Enforceable by the South Australian Arid Lands Landscape Board.
Must not be sold or traded in any way, including as a contaminant of anything.
Must not be transported on a public road, including as a contaminant of anything.
land owners in this region must notify the South Australian Arid Lands Landscape Board of any infestation of the plant found on their land.
More Information
Find out how to:
- benefit from the early intervention of new and emerging weeds - handbook
- best manage your use and storage of agricultural and veterinary chemicals.
Control advice
For further help and advice managing this weed contact your regional landscape board: