1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Congratulations to Sheal for winning the January Photo Competition!
    AND
    That also makes Sheal our first entry in the Champion of Champions thread for 2018!

    February's Photo Competition is now open, with December's winner Canadian Lori choosing the theme - February: Bliss or Bleak?

    The Recipes area of the forum continues to thrive, with a library of tasty recipes growing all the time - if you have any suggestions, please do join in with the Recipes Sub-Forum Discussion

    Or, why not learn something from our very own resident CHEF!

    Dismiss Notice

Black and yellow spots on leaves

Discussion in 'Roses' started by "M", Dec 4, 2017.

  1. "M"

    "M" Total Gardener

    Joined:
    Aug 11, 2012
    Messages:
    18,103
    Location:
    The Garden of England
    Ratings:
    +30,328
    I moved a rose back in October, kept it duly watered and it has survived :phew:

    However, it is not looking at all healthy :frown: the leaves are turning black and yellow. Is there something I can do? Is it lacking in something, if so, what?

    Thank you.
     
    • Informative Informative x 2
    • Snorky85

      Snorky85 Total Gardener

      Joined:
      Jul 7, 2013
      Messages:
      1,068
      Gender:
      Female
      Occupation:
      Accountant on a career break
      Location:
      Buckinghamshire
      Ratings:
      +2,403
      Hi @"M" does it look like this?IMG_1889.JPG
       
      • Like Like x 2
      • "M"

        "M" Total Gardener

        Joined:
        Aug 11, 2012
        Messages:
        18,103
        Location:
        The Garden of England
        Ratings:
        +30,328
        :think3: Not quite ... I'll put some pix up later, but I've got to get a wiggle on now to get to work.
        Your spots look more closely packed than mine.
         
        • Friendly Friendly x 2
        • Clare G

          Clare G Gardener

          Joined:
          Mar 29, 2017
          Messages:
          155
          Gender:
          Female
          Location:
          London UK
          Ratings:
          +384
          Sounds like rose black spot:Rose black spot/RHS Gardening

          To be honest I find that RHS link unduly gloomy. I do get it, but only a little, only on certain roses, and mostly at this time of year - it is a fungus so encouraged by damp autumn weather. I noticed my lowgrowing Fairy rose in particular has it quite badly - so plan to pick the leaves off this afternoon and throw them away, rather than composting them. Earlier in the season I would also spray if need be, with a little Roseclear.
           
          • Informative Informative x 2
          • Agree Agree x 1
          • Mark56

            Mark56 Gardener

            Joined:
            Apr 26, 2017
            Messages:
            221
            Gender:
            Male
            Location:
            Windsor, UK
            Ratings:
            +527
            Agree with Clare, pick off and clear leaves, as well as those that have fallen on the soil. Give the plant a thick mulch but most roses give way to black spot/rust at this time of year, it's making sure it doesn't overwinter below the plant that matters. A half milk, half water spray is supposed to work wonders for fungal problems like this.
             
            • Informative Informative x 2
            • pete

              pete Growing a bit of this and a bit of that....

              Joined:
              Jan 9, 2005
              Messages:
              23,748
              Gender:
              Male
              Occupation:
              joinery
              Location:
              Mid Kent
              Ratings:
              +18,766
              Not sure if you can still get it but sulphur spray is good for rose black spot.
               
              • Informative Informative x 2
              • Like Like x 1
              • wiseowl

                wiseowl Friendly Owl Admin Staff Member

                Joined:
                Oct 29, 2006
                Messages:
                30,916
                Gender:
                Male
                Occupation:
                Philosophy of people
                Location:
                The Garden Of England
                Ratings:
                +48,235
                Good afternoon @"M" my friend ,did you cut it right back when you moved it,my advice for what its worth it to winter prune now,that's what Woo does when its an uncommonly warm/wet December;):blue thumb:
                 
                • Informative Informative x 3
                • "M"

                  "M" Total Gardener

                  Joined:
                  Aug 11, 2012
                  Messages:
                  18,103
                  Location:
                  The Garden of England
                  Ratings:
                  +30,328
                  Erm ... that would fall into the "no" category :whistle: My primary aim was to keep it well watered. But, I shall follow your advice and give it a Santa Chop :thumbsup:
                   
                  • Like Like x 1
                  • Cliff1932

                    Cliff1932 Gardener

                    Joined:
                    Dec 7, 2017
                    Messages:
                    23
                    Gender:
                    Male
                    Ratings:
                    +48
                    the last thing your roses is water in october' the ground should be damp but not wet. you defanatly black spot ' not much of a problem pick off all affected leaves .check that the spots are not on the stem or branches .if not clear all the debery around the plant , if the black spot has reached the stem or woodwork then spray with fungus fighter ,by te way burn all the leaves you have removed. with bush roses I like to cut them down to about 4 inches from the ground either now or early spring, they realy take off next year and the flowers are biger and nicer,
                     
                    • Informative Informative x 2
                    • Like Like x 1
                    • Friendly Friendly x 1
                    • Cliff1932

                      Cliff1932 Gardener

                      Joined:
                      Dec 7, 2017
                      Messages:
                      23
                      Gender:
                      Male
                      Ratings:
                      +48
                      I missed an important point but mark56 reminded me remember a well fed plant will fight off most things itself so put some manure around the plant, you can get puffer packs of green or yellow sulphur but it will not help your rose, I use it for mould that some times forms on pots,
                       
                      • Like Like x 2
                      • Mike Allen

                        Mike Allen Apprentice Gardener

                        Joined:
                        Jan 4, 2014
                        Messages:
                        12
                        Gender:
                        Male
                        Ratings:
                        +25
                        More often than not, plants and in this case, roses signs and symptoms tell us much. Thanfully the leaves of any plant tend to act like a shield. Viral, bacterial, general care etc such as lack of watering to excess of watering. The leaves are talking to us. In this case, yes the pictures indicate Black Spot. Here you have the choice. Gently remove the affected leaf or give it time and it will drop off. Either way please follow this advice.

                        Yes we know that fallen leaves can provide us with valuable leaf mould. However. Our tiny gardens...compared to the open wilds..the natural world. Things change. Inyour garden. Damaged affected leaves, remove or let them drop. DO NOT COMPOST. BURN. Why? Simply because whatever virus or bacterium is present inthe leaves can an often survives. Left lying onthe ground, the rotting tasks proceeds. The virus or bacterium can develop in the soil. This way the enemy is given a freeway to entering the plant's system. It is now in the compost and the plants literally eats it up. Whereas before. The infection was contaminated and affected the outer bounds of the plant. The leaves. Hope this helps.
                         
                        • Informative Informative x 1
                        • Gail_68

                          Gail_68 Beauty blooms in the garden as well as the heart.

                          Joined:
                          Nov 17, 2017
                          Messages:
                          1,049
                          Gender:
                          Female
                          Occupation:
                          Housewife
                          Location:
                          West Midlands_UK
                          Ratings:
                          +1,808
                          Hi @Mark56 I only have two separate rose plants..the one on the front garden the leaves are always nice but i'm sure the back one as showed signs of this and i'll try what you've suggested if it does :)
                           
                          • Like Like x 1
                          • Gail_68

                            Gail_68 Beauty blooms in the garden as well as the heart.

                            Joined:
                            Nov 17, 2017
                            Messages:
                            1,049
                            Gender:
                            Female
                            Occupation:
                            Housewife
                            Location:
                            West Midlands_UK
                            Ratings:
                            +1,808
                            Ours are Winter pruned @wiseowl :yahoo:and most of our other plants :whistle:
                             
                            • Friendly Friendly x 1
                            • Gail_68

                              Gail_68 Beauty blooms in the garden as well as the heart.

                              Joined:
                              Nov 17, 2017
                              Messages:
                              1,049
                              Gender:
                              Female
                              Occupation:
                              Housewife
                              Location:
                              West Midlands_UK
                              Ratings:
                              +1,808
                              This is the Rose tree i'll be keeping an eye on for black spots...it's starting to bud well already :)

                              20180215_125055.jpg
                               
                              • Friendly Friendly x 1
                              • wiseowl

                                wiseowl Friendly Owl Admin Staff Member

                                Joined:
                                Oct 29, 2006
                                Messages:
                                30,916
                                Gender:
                                Male
                                Occupation:
                                Philosophy of people
                                Location:
                                The Garden Of England
                                Ratings:
                                +48,235
                                • Friendly Friendly x 1

                                Share This Page