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Trouble on a climbing rose

DaveKearleyDaveKearley Posts: 130
in Problem solving
Can anyone identify the issue with my Pilgrim climber please, I can't find it in any of my books :)


Posts

  • Lizzie27Lizzie27 Posts: 12,494
    Just looks like blackspot to me. Just pick off the affected leaves and dispose of them in the council waste bin. It should grow new ones soon.

    It is growing in that pot?  It might not be happy in that for very long.
    North East Somerset - Clay soil over limestone
  • DaveKearleyDaveKearley Posts: 130
    Thanks,
    it has had blackspot but this didn't look the same, i guess it can vary.

    If you look halfway up just to the left, there a stem that has black marking too - is that the same??

    The pot is pretty large and the rose is only about 9m old, the pot size was recommended to me.
  • Busy-LizzieBusy-Lizzie Posts: 24,043
    Yes, it's blackspot.

    How big is the pot? It should be  minimum of 60cms x 60cms. Roses fight disease better when they are well fed and watered and a rose in a pot will need more feeding and watering than one in the ground.

    You can buy treatment for blackspot in garden centres. 
    Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
  • Lizzie27Lizzie27 Posts: 12,494
    It might be, so keep an eye on it. If the black marks on the stem move upwards, then I might be inclined to cut that whole branch out.

    The black colouring along the centre of the stems does seem unusual but I can't think what else it might be. Perhaps our rose guru @Marlorena might be able to help more.
    North East Somerset - Clay soil over limestone
  • DaveKearleyDaveKearley Posts: 130
    Its about 45 x 45 i'm afraid. It has auto watering once the frosts stop. There is no ground unfortunately.

    I'll give it a tidy up and some treatment

    Thanks
  • Busy-LizzieBusy-Lizzie Posts: 24,043
    Black spot is quite common in roses, but more so at the end of the season. I don't think it's very serious, just unsightly. Doesn't stop roses flowering. I would spray it with a fungicide for roses. I never use pesticides though. Pick off the diseased leaves, don't put them in your compost. I put them in the kitchen waste bin.

    I had a climbing Pilgrim in a pot for 8 years and it never got black spot. The pot was a lot bigger than yours and I fed it every 2 months.
    Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
  • MarlorenaMarlorena Posts: 8,705
    As others have said, roses get various fungal diseases, we tend to call them collectively 'black spot' when the actual disease is caused by similar pathogens..  Black Spot [Diplocarpon rosea] tends to be active only when temps. reach 68F and above..  during cooler temps we see such as Anthracnose, and Cercospora Leaf Spot, which is what I think you have there, but I'm not a plant pathologist..

    Whatever, you treat the same way... I would just snip off the bad leaves with scissors and forget about it, or use a spray, but I can't advise on that as I don't spray roses..

    There is an unhealthy looking stem that some of those leaves are connected to, depends, but I might cut that out... have to leave that up to you..
    East Anglia, England
  • Lizzie27Lizzie27 Posts: 12,494
    Thanks  for responding @Marlorena.
    North East Somerset - Clay soil over limestone
  • DaveKearleyDaveKearley Posts: 130
    Thanks all, i'll get going on it in the morning :)
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