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what is Japanese knot weed and how do i get rid please

I have just bought a house and I have now been told I have Japanese knot weed and its bad! This is my first garden so I'm clueless, please can someone advise me what I can do. Thanks in advance x


  • fidgetbonesfidgetbones Posts: 16,527

    Have you got a photo of the offending  weed?

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  • sorry couldn't turn the pictures around hope this helps to identify the weeds thank you.image


  • DyersEndDyersEnd Posts: 730

    The pics put themselves the right way up when you click on them image  I can't answer your question though I'm afraid but others will be able to I'm sure.

  • Thank you anyway!!!
  • fidgetbonesfidgetbones Posts: 16,527

    It looks quite small for japanese knotweed. That may mean the sellers have chopped it all down and treated it once already. Did the survey show it up.? if the vendors knew about it, it should have been declared.

    However... I would spray it all with a glyphosate  solution. It should turn brown and die. You have to burn the residue on site. You cant put it in a bin or move it off the original site.  If it regrows, spray again. It may take a number of sprayings to be rid permanently.

    Is that the house wall or a garden dividing wall? Is there growth on the other side of the wall? if so, that will need treating as well.

  • CeresCeres Posts: 2,149

    Here is the RHS advice on this horrendous weed.


  • flumpy1flumpy1 Posts: 3,117

    Do you have to get in touch with the council? Correct me if I'm wrong image

  • No, you can try to get rid of it yourself, no need to inform anyone.

  • thanks for the all advice. Some things for me to be getting on with!! ????
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