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What's this bug on my climbing rose?

KatsaKatsa Posts: 278
in Wildlife gardening
Have two of these on my climbing rose. Never seen it before. Should I encourage it to stay or find another plant?

Posts

  • B3B3 Posts: 27,505
    I think it's a sawfly and you dont want to encourage it.
    In London. Keen but lazy.
  • DovefromaboveDovefromabove Posts: 88,147
    I think it’s a saw-fly ... I’d probably squidge it if I was precious about my roses. 

    Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.





  • OmoriOmori Posts: 1,674
    It's currently making a long incision to lay its eggs, which will hatch and then do a very impressive job of decimating the leaves back to a bare framework. If its already laid the eggs I run something along them in the incision to smoosh them so they don't hatch. At least the bright orange bodies are easy to spot  :#
  • KatsaKatsa Posts: 278
    edited June 2020
    Eep! I've tried to dig out all the eggs, but may have just killed the stem. ...

    Managed to find one of the larvae under a leaf and did for that. Have checked other roses too and seen the dreaded vertical cut 😕, I've just cut the stems off. Hopefully caught the infestation in time 
  • OmoriOmori Posts: 1,674
    I don’t mind ‘pests’ in general, but I really can’t stand sawfly 😖 Something about them injecting their eggs in like that really turns my stomach. Established roses can cope and the canes that have been scarred generally still flower well but those big scars really look unsightly. I already have quite a few 😖 
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