Providing evidence to improve practice

Action: Water primrose: Use of a tarpaulin Control of Freshwater Invasive Species

Key messages

  • No evidence was captured on the use of tarpaulin for control of water primrose.

'No evidence' for an action means we have not yet found any studies that directly and quantitatively tested this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.


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