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Index of Subjects didn't work, nor did the back hoe. sorry to say. Marg in White Point, Queens http://margmillard.ca ----- Original Message ----- From: "Dave/Sharon" <dash.bi@ns.sympatico.ca> To: <naturens@chebucto.ns.ca> Sent: Sunday, August 17, 2008 7:17 AM Subject: Re: [NatureNS] a positive aside on Japanese Knotweed > This escaped ornamental is even worse than goutweed (Aegopodium > podagraria). Classed as a noxious weed in many provinces, Japanese > knotweed (Polygonum cuspidatum) has shoots that can penetrate asphalt. > Chop it back to the ground, then cover the area with a layer of heavy > black plastic held down with bricks. Leave for several weeks in the sun to > fry the remnants beneath. Then cover the whole lot with dampened newspaper > and another layer of black plastic. This is a tough plant and it will take > a while to get rid of it cheaply. The alternative is to dig it out with a > backhoe. I'd go with the plastic >
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