Volunteers needed to rid Park of invader

A wildlife group has organised several events aimed at removing and stopping the growth of the non-native Himalayan balsam, but organisers said more help would be needed.

Himalayan balsam has spread along riverbanks throughout the national park in recent years, and the pink-flowered plant engulfs other plants and causes erosion which affects riverside wildlife.

The operation to pull up this year's crop has been organised by the Peak District National Park Authority, the Derbyshire Wildlife Trust and the Trent Rivers Trust in the Derwent, Dove, Hamps and Manifold valleys.

National park ecologist Frances Horsford said: "We need to get rid of it in July and August before it seeds. Each plant produces up to 800 seeds in pods that 'explode' on touch, catapulting the seed up to seven metres. In autumn it dies back leaving bare banks.

"It was introduced to gardens in the 1800s, but quickly escaped and now threatens the biodiversity of our riversides. We'd be very grateful for people's help before it's too late."

The first volunteer day was held on the River Dove and further days will be held on the Derwent on Sunday, July 11, Saturday, July 17, and Sunday, July 25, meeting near Calver crossroads on A623, by the playing fields.

Volunteers must be over 18 and reasonably fit. Gloves, goggles and drinks will be provided. Children are welcome with an adult but dogs are not permitted.

For more information about other volunteer days, contact Derbyshire Wildlife Trust on 01773 881188.