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New marks on Dahlia leaves? picture in post

Smiley783Smiley783 Posts: 2
edited July 2018 in Problem solving
I was wondering if anyone would know what these marks are? Are they some kind of disease or a mark left from an insect?


  • B3B3 Posts: 26,518
    Probably leaf miners
    In London. Keen but lazy.
  • PosyPosy Posts: 3,601
    That's what it is. There seem to be a lot this year.
  • Smiley783Smiley783 Posts: 2
    Thank you both, it looks like that's exactly it. Problem solved! That was easy :)
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