Bigelow Wildlife Refuge Update: Knotweed Control
Published on April 23, 2022 by Eileen Samberg
Although best known for the rustic landscapes and hiking trails of our Beals Preserve, did you know SOLF also maintains about 20 properties and community spaces in town? SOLF trustee Lawrence Spezzano and volunteers having been working to remove invasives and beautify our newest property trail at our Bigelow Wildlife Refuge near the end of Bigelow Road in Southborough. If interested in helping, please contact SOLF at firstname.lastname@example.org. When you come to work, bring gloves, firm rake or pruners, if you have them!
Lawrence has been laying down a wire mesh to slow the growth of knotweed. As the stems continue to grow, they will expand in diameter. At a certain point, the stems will push against the steel mesh and girdle themselves. The surface growth (stems and leaves) of the plant wilts and will eventually die, but the rhizome will continue to push new stems up through the ground (and wire mesh). This will continually kill the stems and will lead to the depletion of rhizome carbohydrate stores, which are required by the stems for growth.