Our economy

Invasive non-native species cost the British Economy over £1.7 billion per year, ranging from loss of crops, damaged buidligns and additional production costs, to the loss of livelihoods and ecosystem services. Read more in The Economic Cost of Invasive Non-native Species to the British Economy (PDF).
Fishing equipment smothered in Carpet Sea-squirt
Invasive non-native species can directly interfere with the production of commodities such as food or materials.  One example is the Carpet Sea-squirt (Didemnum vexillum).  This marine animal has the potential to smother lines used to farm shellfish as well as shellfish beds themselves. We should not forget that pests of farming and agriculture are also often invasive non-native species.  These cost the GB economy millions each year in loss of production and the need for pesticides / herbicides.

[picture: fishing equipment smothered in Carpet Sea-squirt]
Our buildings and property are damaged
Japanese Knotweed shoot growing through tarmac car park
Japanese Knotweed is infamous for its ability to grow through hard surfaces, such as tarmac car parks and building foundations.  This species alone is considered to cause millions of pounds worth of damage in Great Britain.  The building and infrastructure industries are estimated to pay at least tens of millions controlling invasive non-native species each year.

[picture: Japanese Knotweed shoot growing through tarmac car park]
It's a lot harder to do the things we used to do at the same cost
With invasive non-native species in the way, it often becomes difficult to do things the way we used to.  For industries such as agriculture, fishing, farming, development and water, simply maintaining equipment and keeping problems caused by invasive non-native species at bay costs significant amounts of money.

Work has to be delayed
In a number of cases, work has had to be delayed while the problems caused by invasive non-native species are sorted out.  A £1.5 million road development was delayed for three years following the discovery of Japanese Knotweed on the site.

Thin strip of image show tree trunk and bark