Japanese Knotweed Management Project
Japanese Knotweed Management Project
The Junction Creek Stewardship Committee is removing a patch of invasive Japanese Knotweed near Clinton Ave. & Perreault St. as part of restoration efforts to repair the greenspace and help native plants flourish.
This project was made possible with support from the Invasive Species Centre’s Invasive Species Action Fund and the Ontario Ministry of Natural Resources and Forestry, Northern Ontario Heritage Foundation, and the City of Greater Sudbury. Also, a special thank you to Ethier Sand & Gravel for donating sand to fill the sandbags!
What is Japanese Knotweed?
Japanese Knotweed is an invasive plant that grows aggressively in dense patches, taking over an area, outcompeting native plants, and negatively impacting habitats. This plant can even grow through concrete and has been noted to damage building foundations and other infrastructure.
Japanese Knotweed – Profile and Resources | Invasive Species Centre
Management technique being used
The management technique being used at this site does not involve any chemicals. We are using a “cutting and tarping” or “smothering” method. This method is a more environmentally friendly alternative to herbicides. First the plant is cut and removed, then a weighted tarp covers the site to block sunlight and water and heat up the roots. This creates unfavourable conditions and stops the plant from growing back. After several years of “smothering”, the site will be ready to be replanted with native plants.
Help stop the spread of invasive plants!
Japanese Knotweed and other invasive plants can spread from yard clippings being dumped in greenspaces and by seeds being transferred on footwear.
Do NOT dump yard waste into greenspaces, instead dispose of yard waste following residential leaf and yard collection guidelines. For more information: Manage Leaf Yard Brochure (greatersudbury.ca)
Use a boot brush to clean off plant seeds stuck in mud/dirt on your shoes before and after walking on the trail.
