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| Lagarosiphon oxygen
weed (Lagarosiphon major) |
| Family: Hydrocharitaceae |
| Description: |
| Lagarosiphon is a rhizomatous, perennial, submerged aquatic herb with spiralled leaves on slender to almost woody stems. It has tiny pink flowers in summer. The leaves of Lagarosiphon curl right back on themselves. |
| Other names: |
| Elodea crispa, Lagarosiphon muscoides, lake weed, oxygen weed. |
| Values at risk: |
| Recreational, ecological and aesthetic values, particularly on ponds, lakes and reservoirs. |
| Strategy rule: |
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There is no rule requiring you to control lagarosiphon oxygen weed. Any control is voluntary. |
| How to destroy: |
Hand pull small isolated infestations. For larger infestations, a diver-operated Venturi pump is the preferred method of control. Take extreme care to minimise any disturbance and collect and dispose of any broken shoots. Use a herbicide. Diquat (eg Reglone) is a herbicide recommended and approved for use in waterways. Click on the link below for information on how it must be used. Possible restrictions on the application of herbicides
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