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Insects that eat Japanese Knotweed

Discussion in 'Gardening Advice' started by Wildmoor, Sep 2, 2013.


  1. Wildmoor

    Wildmoor PetForums Senior

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    Anyone know of any in the UK
     

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  2. Burrowzig

    Burrowzig PetForums VIP

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    Could it be slugs? I don't know of any insects that specifically eat Japanese knotweed, though some moth caterpillars eat a wide range of plants.
     
  3. Wildmoor

    Wildmoor PetForums Senior

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    I have been told by CABI UK that there are 2 different ones eating this, a moth larvae and a weevil
     
  4. Jonescat

    Jonescat Don't do nothing. Do something.

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    Are they something introduced to control it then or have the locals finally decided to eat it?
     
  5. Wildmoor

    Wildmoor PetForums Senior

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    No they are locals, apparently when their own food source is in short supply they will eat this but only young leaves, its on some spare land near my house and I cut it regular so any leaves are young.
    I believe they have introduced something down south that sucks the sap but nothing but natives here
     
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