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With community the Lake District National Park Authority aim to survey
the Grasmere, Rydal and Ambleside wards for Himalayan Balsam. This will
provide them with a clear picture of where the balsam is and prioritise
efforts to remove it. Following this baseline survey, the intention is
to then conduct further surveys to monitor the success of removal work.
Once the location of this invasive species has been established the
Park Authority hope to then embark upon the removal phase, with a view
to erradicating this species along the Grasmere-Windermere watercourse.
Removal will involve the hand pulling of the balsam and will rely on
support from local groups and other volunteers we will hand pull the
balsam. Balsam has already been cleared in two compartments on National
Trust land at White Moss and cover on the southern side of the River
Rothay has been suppressed.
What is Himalayan Balsam?
An invasive alien which escaped from
Kew Gardens over 160 years ago and has now swamped large areas of the
Lake District. Himalayan balsam has purplish-pink slipper shaped flowers
from June to August. It has colonised riverbanks and areas of damp
ground, annihilating native grasses and other flora. It grows in dense
stands which suppress the growth of grasses and other plants. Any control
must be carried out before the seed pods have formed, to give long-term
benefit. Each plant can produce 800 seeds which explode from pods and
can travel up to seven metres, or be carried considerable distances
by rivers.
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