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wildfoodie
Joined: 05 Apr 2005 Posts: 2169
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cab
Joined: 01 Nov 2004 Posts: 32429
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jamanda Downsizer Moderator
Joined: 22 Oct 2006 Posts: 35056 Location: Devon
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Mat S
Joined: 07 Nov 2004 Posts: 282 Location: Leicester
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cab
Joined: 01 Nov 2004 Posts: 32429
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cab
Joined: 01 Nov 2004 Posts: 32429
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jamanda Downsizer Moderator
Joined: 22 Oct 2006 Posts: 35056 Location: Devon
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cab
Joined: 01 Nov 2004 Posts: 32429
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wildfoodie
Joined: 05 Apr 2005 Posts: 2169
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jamanda Downsizer Moderator
Joined: 22 Oct 2006 Posts: 35056 Location: Devon
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jamanda Downsizer Moderator
Joined: 22 Oct 2006 Posts: 35056 Location: Devon
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cab
Joined: 01 Nov 2004 Posts: 32429
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Posted: Fri Apr 13, 07 9:01 am Post subject: |
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wildfoodie wrote: |
I'm confused: bellway homes the baddies because they caused
knotweed to spread? or sprayed it dead?? enviroment agency spreading chemicals should be pelted with eggs??
explain please!! |
Japanese knotweed, last time I looked for stats, covered half of one percent of Britains land area. Whereas in Cambridge it can be a spreading, troublesome weed, because we're so arid and have a wierd limey/clayish soil it only spreads a bit. In, say, the South West it can spread like a rocket - it can grow inches per day, and spread outwards several metres a year. Its found across pretty near all of the country now (I've found it on Lewis, I've found it on the coast of East Anglia, on the banks of the Clyde, in North Wales, on the Cornish coast, its spread all over the place).
If it decides to grow near your house then unchecked it'll take walls down, sometimes finding cracks in the foundations to grow up through and appearing indoors behind furniture. To kill it, you either need to dig every last scrap out (an inch of stem, all of which being meristematic, will sometimes be enough to get it growing again). Doesn't sound too bad, but the roots spread down and out seemingly as far as you can dig. So to eraricate it you either have to spray and keep spraying (problematic and nasty), cut the stems and pour high concentration glypohosate down the holes (doesn't always work even then), spray 'smart' (do it in autumn and repeatedly in spring, then autumn again), cover in black polythene a much greater ground area than has visible plant, or strip the soil down to geology and burn it. Even then it has been known to come back.
Unsurprisingly, the estimated cost of eradication is in the billions.
Technically, transporting it (even stuff home to cook) is illegal. Spreading it and replanting it is definitely illegal, and it is meant to be the duty of people who are moving soil about to make sure they don't do it. Aren't many prosecutions though (I don't recall any!).
While the environment agency spraying herbicides sounds bad, its usually better than leacing knotweed unchecked. Personally, I think we should encourage people to eat it to death. |
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wildfoodie
Joined: 05 Apr 2005 Posts: 2169
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jamanda Downsizer Moderator
Joined: 22 Oct 2006 Posts: 35056 Location: Devon
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wildfoodie
Joined: 05 Apr 2005 Posts: 2169
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