Skip to main content
Himalayan Balsam Non-native Invasive plant

D7 – Invasive non-native species

Support land managers to create more resilient landscapes through the development and implementation of strategies that reduce the risk and spread of invasive non-native species, and respond to threats from pests and diseases that threaten the environment of the National Park.


How are we doing on this objective

Progress: The Yorkshire Dales Invasive Non-Native Species Working Group continues to work on identifying priorities for action. There has been an EA-led survey of INNS on main rivers in the National Park and in 2021 that will be extended to tributaries of main rivers in order to establish where control and/or eradication measures are best targeted.

Press Releases & related articles:

16 August 2021 – Kicking to see what’s alive: wildlife surveys carried out


Rationale:  Invasive non-native species, pests and diseases are one of the biggest threats to biodiversity worldwide, and to the biodiversity of the National Park.  Current examples include: the impacts of chalara (ash dieback) on upland ash woodlands; the impacts of grey squirrel on red squirrel populations; the near-wiping out of native crayfish by American Signal crayfish; and the spread of Himalayan Balsam.  Where practical, reducing and managing the potential impacts of invasive non-native species (through prevention of spread and strategic action) will assist in achieving many of the other objectives in this Plan.

Lead partner:  Yorkshire Dales Biosecurity & INNS Working Group;

Supporting partners:  Yorkshire Dales National Park Authority; Yorkshire Dales Rivers Trust; Ribble Rivers Trust; Environment Agency; Natural England; Yorkshire Water; Yorkshire Wildlife Trust; Forestry Commission; National Trust;

Further information:  YDNPA – Invasive Species ‘Stop the spread’;    

Cost over 5 years:           

Funding shortfall:           

Related objectives:   A1; C1; C2; C3; F6

Ecosystem services: Biodiversity; Regulating pests; Genetic diversity; Climate regulation; Timber provision

Trade-offs:    None

Baseline: No strategies in place. Ad hoc activity on some species (e.g. Japanese Knotweed)