What's this bug on my climbing rose?

Posts

• B3 Posts: 15,821

  June 2020

  I think it's a sawfly and you dont want to encourage it.

  In London. Keen but lazy.

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• Dovefromabove Central Norfolk UKPosts: 66,151

  June 2020

  I think it’s a saw-fly ... I’d probably squidge it if I was precious about my roses. 

  “I am not lost, for I know where I am. But however, where I am may be lost.” Winnie the Pooh
  
  
  
  
  
  
  
  

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• Omori The NorthPosts: 830

  June 2020

  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 

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• Katsa Peak District, UKPosts: 197

  June 2020 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 
  

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• Omori The NorthPosts: 830

  June 2020

  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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