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What is causing

What is causing the small, bright green raised areas on the underneath of the leaves on my damson tree? Thank you 


  • DovefromaboveDovefromabove Central Norfolk UKPosts: 77,510
    Sounds like leaf galls caused by tiny gall wasps laying eggs on the leaf. The gall forms around the egg to protect the leaf. Nothing to worry about. 

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

  • Beanyjeany2Beanyjeany2 Posts: 33
    Thank you :)
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