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Japanese Knotweed

leslie.gibbsyUIawWDZleslie.gibbsyUIawWDZ Posts: 5
edited September 2022 in Problem solving
Just moved into a house in France ( no rules on Japanese knotweed here or companies to come deal with it  ) have one large stem which is definitely Japanese knotweed over the over side of the garden 14 meters away  I can see Knotweed in neighbours garden I have horrible feeling this is more stems are hard & woody unlike big stem which is softer & more red 
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  • Hostafan1Hostafan1 Posts: 34,889
    there will almost definitely be more I'm afraid
    Devon.
  • leslie.gibbsyUIawWDZleslie.gibbsyUIawWDZ Posts: 5
    The one stem is close to fence  can see  it in neighbours garden this is approx 14 meters away
  • GardenerSuzeGardenerSuze Posts: 5,692
    I think I would be very careful how you dispose of it there could be some unknown rules.
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
  • leslie.gibbsyUIawWDZleslie.gibbsyUIawWDZ Posts: 5
    I’ve lived in France 15 years speak French there are no rules that’s not what I’m asking just need to know if these stems are also JKW
  • Arthur1Arthur1 Posts: 542
    It looks thinner, less vigorous than I would expect, and theres lots here, along the Severn. But can't see what else it would be 
  • leslie.gibbsyUIawWDZleslie.gibbsyUIawWDZ Posts: 5
    Im sorry if it came across that way I’m German and probably bit more direct ( husbands account ) I just really worried how I’m going to deal with it right next to house all across the lawn Glyphosate is banned here I have done lots of research but just confused as doesn’t look like typical knotweed but also can’t find what else it could be maybe it’s because it’s been treated with some other weed killer & this is regrowth
  • Arthur1Arthur1 Posts: 542
    I presume you have full size knotweed shoots nearby to confirm your identification.
    You can dig up knotweed. Might take a while to get rid of it all, pieces left will regrow. But as you dig it up you will weaken it. Also put mypex or similar where it is shooting. Again, to weaken it.
    It's not an insurmountable problem. But it is tough and vigorous.

  • MikeOxgreenMikeOxgreen Posts: 812
    edited September 2022
    Why are they stems with no leaves?
    JK is easily dealt with, you just need some understanding.

    EDIT: Sorry, I missed it was coming from your neighbours. You need to deal with it at source.
  • Bee witchedBee witched Posts: 1,295
    Hi @leslie.gibbsyUIawWDZ,

    If you can see it in your neighbours garden, and it's not being dealt with, then I'm afraid you are likely to have an ongoing problem.
    I would follow the advice from @Kate 7, and just keep digging bits out whenever you see them. Maybe check once a week to see if there's any new growth and dig it out before it becomes established.

    It has an extensive rhizome root system can extend up to 3 metres laterally. This means that a garden fence is little defence to an invasion from your neighbour’s garden.
    So trying to keep on top of it on your side of the boundary is the best idea.

    Good luck,
    Bee x
    Gardener and beekeeper in beautiful Scottish Borders  

    A single bee creates just one twelfth of a teaspoon of honey in her lifetime
  • GardenerSuzeGardenerSuze Posts: 5,692
    @pansyface My daughter speaks fluent French. Sometimes there can be misunderstandings. I did ask this question with good reason and I would like to thank you for your kindness. I do know you are well liked and well respected on this forum. Thank you for taking time to post
    I have worked as a Gardener for 24 years. My latest garden is a new build garden on heavy clay.
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