The destructive Japanese knotweed could put lives at risk on major infrastructure projects. Vancouver Sun, July 6, 2012, front page!
The predominant one here is Bohemian knotweed, the hybrid between Japanese and giant knotweeds, which are much less abundant in this region.
Thank you for the heads up. We live in Ohio and I had no idea this plant was even present here, now I read it is a noxious weed here too. Seems like all we do is fight invasive plants. Just yesterday I cut some Japanese honeysuckle off of some native black walnut trees that were getting strangled. Next to that were some Ailanthus trees (you have no idea how much I hate those things).
That article from the Vancouver Sun has of course disappeared. Here is one that has much the same information: Concrete-busting weed can threaten projects
