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Is this blackspot?

MemetraderMemetrader Posts: 48
in Problem solving
Do you think this is blackspot or something else on my rose?


Posts

  • BorderlineBorderline Posts: 4,700
    Leaves can go like that when they are stressed and the leaf about to shed. 
  • MemetraderMemetrader Posts: 48
    It is not a disease then?
  • BorderlineBorderline Posts: 4,700
    It could be a result of blackspot. I need to see the other leaves to know the reason for yellowing leaves. 
  • MemetraderMemetrader Posts: 48
    Here is a picture of the stem...

  • BorderlineBorderline Posts: 4,700
    The stem could be the early signs of rose canker. If the leaves are coming from this branch, it could be starting to die back. But without seeing more of the leaves, it is hard to know if the leaves are dropping off due to this or black spot. Is the rose growing in a container or in the ground?
  • MemetraderMemetrader Posts: 48
    In the ground, here are some more leaves.....



  • BorderlineBorderline Posts: 4,700
    Thanks for the photo. I would say that is the beginning of black spot. It tends to happen to older weaker leaves near the bottom. Make sure you collect any fallen leaves and don't leave them sitting at the base of your plant. 
  • edhelkaedhelka Posts: 2,351
    Yes, I think it's blackspot. The irregular veined or web-like edges are typical. The things on the stem look like scale.
  • MemetraderMemetrader Posts: 48
    Thank you!
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