Non-native invasive species are species which have been introduced either intentionally or unintentionally by humans and have the ability to negatively impact on the economy, wildlife and/or habitats.
Useful information on the Removal of Invasive Species can be sourced from:
http://invasivespeciesireland.com/
Contact the Longford/Westmeath branch Irish Wildlife Trust to get involved in biodiversity events locally:
http://iwt.ie/about-us/our-branches/longfordwestmeath-branch/