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Knotweed running under drive/patio
On 11/08/2014 20:00, Tam Inglis wrote:
Hi, I've spent the last week digging and sifting the rhizome system of an infestation of Japanese knotweed. however I've now come up against the fact that it is running underneath the driveway/patio. I thought i had caught it before it would have spread there (and indeed it is relatively clear) however there was one 'crown' perhaps a meter at the closest point to the patio and as a result there two main roots heading off directly underneath the driveway and patio. I'll take the bricks and patio slabs up if nothing else presents itself but if anyone has any help/tips for removing/killing a root system underneath non-diggable area it would be *greatly* appreciated. Glyphosate. I lopped the canes in late summer or early autumn and poured or sprayed a little solution into the hollow centre of the stumps. Any spindly growth that came up next year was sprayed. Digging is not recommended. The roots go deep and if you miss a piece it /will/ be back. -- Phil Cook |
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