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Black and yellow spots on leaves

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

  1. "M"

    "M" Total Gardener

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    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.
     
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    • Snorky85

      Snorky85 Total Gardener

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      Hi @"M" does it look like this? IMG_1889.JPG
       
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      • "M"

        "M" Total Gardener

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        :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.
         
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        • Clare G

          Clare G Super Gardener

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          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.
           
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          • Mark56

            Mark56 Super Gardener

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            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.
             
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            • pete

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

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              Not sure if you can still get it but sulphur spray is good for rose black spot.
               
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              • wiseowl

                wiseowl FRIENDLY ADMIN Staff Member

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                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:
                 
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                • "M"

                  "M" Total Gardener

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                  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:
                   
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                  • Cliff1932

                    Cliff1932 Gardener

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                    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,
                     
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                    • Cliff1932

                      Cliff1932 Gardener

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                      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,
                       
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                      • Mike Allen

                        Mike Allen Total Gardener

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                        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.
                         
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                        • Gail_68

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                          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 :)
                           
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                          • Gail_68

                            Gail_68 Guest

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                            Ours are Winter pruned @wiseowl :yahoo:and most of our other plants :whistle:
                             
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                            • Gail_68

                              Gail_68 Guest

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                              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
                               
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                              • wiseowl

                                wiseowl FRIENDLY ADMIN Staff Member

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