Back in the Kits lowlands, in my new yard, to my absolute delight... I have inherited a 10' tall Giant Japanese Knotweed. (Judging by last year's dead growth). It's just starting to emerge now, and I need to get rid of it, it's taking over my yard and the neighbours'. Boy are they happy we moved in, the previous "landscaper" had left it to grow this indelicate proportion... you can see where they've been hacking it back on their side of the fence... Problem is, it's a 4' wide clump, growing right against an large old tree stump, & in between huge roots so I can't dig it out. The canes are 1" thick or more. Frikkin' huge! That leaves chemical controls, but I want to grow veggies in the same yard, (@ 20' away, but in the direction of drainage on heavy clay soil), and I don't use pesticides or herbicides anyways, except as a means of absolute last resort. So, anyone know any natural alternatives? If I start pouring jugs of vinegar on it now, will it be gone in time for the Olympics??? Ideas? Thanks!