Report the presence of this pest before undertaking control
Information about this pest can be found on the Canadian pond weed: declared pest page.
Chemical requirements
When using any agricultural chemicals please ensure that you always follow instructions on the label and any permit. Users of agricultural chemical products must always strictly comply with the directions on the label and the conditions of any permit. To view permits or product labels go to the Australian Pesticides and Veterinary Medicines Authority website.
Control options
Chemical control options can be found below. For other methods of control please refer to the aquatic weed control page.
Chemical control options
| Recommended herbicides | Coptrol, Diquat |
|---|
| Herbicide: Coptrol | |
|---|---|
| Active ingredient | 107g/L present as mixed copper chelates |
| Rate of product | 2-5L/ha |
| Time of application | Water temperature at least 15oC |
| Wetting agent | Non-ionic @ 1mL/L of water |
| Remarks and more information |
|
| Herbicide: Diquat (Group L) | |
|---|---|
| Active ingredient | 200g/L diquat |
| Rate of product/10L water | 50–100mL |
| Time of application | Summer when plant is actively growing |
| Remarks and more information |
|