Invasive Non-Native Species (INNS) week will take place between 12th May and 18th May. It is an annual initiative that aims to raise awareness about invasive non-native species (INNS) and promote actions to prevent their spread.
Invasive non-native species (INNS) like Japanese Knotweed and Himalayan Balsam pose significant threats to our local ecosystems. These plants outcompete native species, disrupt habitats, and contribute to flooding in Calderdale. Use these identification sheets to familiarise yourself with invasive species.
Invasive species reach woodlands and green spaces through natural means like wind or water, but mostly via human activity—carried on shoes, clothes, or bike tires.
Whenever you’re out in the countryside, remember to Check, Clean, Dry to help stop the spread of invasive plants and animals on land and in water. Yorkshire Water has installed dedicated boot cleaning stations at reservoirs across Calderdale and the surrounding area to help prevent the spread of non-native species and reduce the risk of human-driven contamination. Boot scrubs are available at the following locations: Baitings, Ryburn, Withens Clough, and Scammonden Reservoirs.
Additionally, Calderdale Council will be installing a new boot cleaning station at Jerusalem Farm by the end of May.
This video from Yorkshire Water and Yorkshire Wildlife Trust gives more information on the invasives problem in Yorkshire and how to affectively check, clean, dry your footwear to stop the spread.
The most impactful way you can help is by reporting sightings of invasive species on the INNS Mapper app and website. This is especially important for Japanese knotweed and Giant hogweed, as they require professional treatment and should not be removed by individuals.
Join Slow the Flow for balsam bashing on June 1st, July 6th, August 3rd.
• Meet at Midgehole car park for 9.30am (please make your own way to Hardcastle Crags)
• There will be a 10 – 15 minute walk to get to the activity
• Finish by 1.00pm
Must have items:
• Sturdy footwear
• Long sleeved clothing due to forest undergrowth and bugs
• Drink and snack
Please note:
Under 18s must be accompanied by a parent/guardian.
Himalayan Balsam can be easily removed with a few simple steps. Here are five fast facts:
1. Shallow roots make it easy to pull out.
2. Snap the stems to prevent regrowth.
3. Dispose of the plants responsibly.
4. Join local bashing events.
5. Encourage others to participate. #BalsamBashing #Bashthebalsam
The Yorkshire Invasive Species Forum and Yorkshire Wildlife Trust have produced a guide to help you pull Himalayan balsam safely.
The INNS and Biosecurity team at the Environment Agency is excited to announce a series of informative webinars during INNS Week. These sessions are designed to educate the public on various aspects of invasive species and biosecurity. Everyone is welcome to join, and registration is simple through the provided links. Don’t miss this opportunity to learn from experts in the field!
Webinar Schedule:
Introduction to invasive species and biosecurity
Non-native species inspectorate – enforcing the law
Floating pennywort – challenges and opportunities
Four close-up photos of Himalayan balsam flowers.
Have you found what you were looking for on our site today?
Would you be willing to share a bit more detail about your site experience today? It will only take a few minutes of your time.
This will help us to make future improvements to our website to help you find the information that you need quickly and efficiently.
