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The Tamar Valley National Landscape Partnership is seeking information on the presence and spread of Giant hogweed, Japanese knotweed, Himalayan balsam and American skunk cabbage in the wider river catchment.
As much of the recruitment of seeds or viable plant fragments wash down rivers, it is important to understand their extent in the wider catchment from which new invasive plants may enter the lower reaches of the river and estuary.
We were therefore looking for help in identifying where these four plant species are upstream and in what numbers. For this we needed to tap the knowledge of local people and societies within the Tamar Catchment area and were looking for participants to share their information with us.
This up-to-date information will help to inform a feasibility study that has been commissioned for the possible development of a control programme.
People could use the map below to tell us about the presence of Giant hogweed, Japanese knotweed, Himalayan balsam and American skunk cabbage within the River Tamar catchment area.
Thank you to everyone who used the map to report invasive species.
Important note - do not touch Giant hogweed plants, as to do so can cause blistering and photodermatitis.
The Tamar Valley National Landscape Partnership is seeking information on the presence and spread of Giant hogweed, Japanese knotweed, Himalayan balsam and American skunk cabbage in the wider river catchment.
As much of the recruitment of seeds or viable plant fragments wash down rivers, it is important to understand their extent in the wider catchment from which new invasive plants may enter the lower reaches of the river and estuary.
We were therefore looking for help in identifying where these four plant species are upstream and in what numbers. For this we needed to tap the knowledge of local people and societies within the Tamar Catchment area and were looking for participants to share their information with us.
This up-to-date information will help to inform a feasibility study that has been commissioned for the possible development of a control programme.
People could use the map below to tell us about the presence of Giant hogweed, Japanese knotweed, Himalayan balsam and American skunk cabbage within the River Tamar catchment area.
Thank you to everyone who used the map to report invasive species.
Important note - do not touch Giant hogweed plants, as to do so can cause blistering and photodermatitis.
