Dublin City Council's coming up with a plan to deal with invasive alien species.
They're plants or animals that have been accidentally or deliberately introduced into a natural environment where they're not normally found, with serious negative consequences for those areas.
These species costs the economy more than two million Euro every year.
They include Japanese Knotweed, Himalayan Balsam and American Mink.
The draft plan can be view on Dublin City Council's website or at their offices on Wood Quay.
