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Invasives Control in the Tamar Valley – What can be done? Lessons from the past and future action

May 12 @ 10:00 am - 3:00 pm

giant hogweed

The Tamar Valley Invasives Group, in collaboration with the South West Lakes Trust, is inviting landowners and managers to join them at the Tamar Valley Centre on Thursday 12th May, to discuss what future action can be taken to tackle invasive non-native species in the AONB and wider catchment. You will be introduced to new technologies being developed and used elsewhere to tackle giant hogweed, Himalayan balsam and Japanese knotweed, including electricity, hot water and biological control.

Morning session – 10am – 12noon

Learn about biosecurity, giant hogweed, Himalayan balsam and Japanese knotweed and the problems they pose. The success and lessons learnt from the Tamar Valley’s Giant Hogweed Eradication Project will be presented, and potential future action to control their spread will be considered.

Afternoon session – 1pm – 3pm

We are pleased to be joined by;

Dr Marion Seier, Senior Plant Pathologist and leader of the UK Invasive Species Management Group Centre for the Centre for Agriculture and Bioscience International (CABI), who will introduce us to their biocontrol projects, with a focus on giant hogweed, Japanese knotweed and Himalayan balsam.

Ubiquiek Ltd, joining us from Warwickshire, to tell us about their award-winning Rootwave Pro technology – an innovative, organically-acceptable method of treatment – and how it is being used to treat giant hogweed, Himalayan balsam and Japanese knotweed.

Ecoweed, based in Kent, will introduce us to their specialist hot water weed control method which is based on using hot water combined with advanced temperature control.


Refreshments and a light lunch will be provided at this FREE event. You are welcome to attend for the full day, or parts to suit you. We look forward to welcoming you on the day and to an open discussion on how, together, we may best take this work forward over the next few years.

If you would like to attend, please email vdarwall@tamarvalley.org.uk or call 01822 835030 by 12noon on Monday 9th May to secure your place (please also let us know of any dietary requirements). Places are limited so booking is essential.


This is a joint event organised by the Tamar Valley Invasives Group (Tamar Valley AONB, Environment Agency, Natural England and Cornwall Council) and South West Lakes Trust, and supported by South West Water.

We are thankful for the Rural Development Programme for England’s Water Environment Grant for funding this event.



Tamar Valley Centre
Cemetery Road
Drakewalls, Gunnislake, PL18 9FE United Kingdom
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01822 835030
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