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Rose bush leaf probalems

Discussion in 'Roses' started by lowrider69, Aug 16, 2018.

  1. lowrider69

    lowrider69 Gardener

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    Rose bush leaf problems

    can anyone tell me what these spots are please and if there is a way to get rid of them?

    thanks39442036_1109956999159961_4715714996829421568_n.jpg39277248_252917855379982_3188439293685137408_n.jpg
     
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    • Tetters

      Tetters Total Gardener

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      That is black spot, and our resident rose expert is @wiseowl . I am sure he will be along soon to give you his advice.:dbgrtmb:
       
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      • lowrider69

        lowrider69 Gardener

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        ok thanks I do have some Bayer fungus fighter plus which says control of blackspot I did spray them a few months ago but should I spray them again?
         
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        • wiseowl

          wiseowl Friendly Owl Admin Staff Member

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          Hello @lowrider69 it is Blackspot you must remove all the infected leaves everyone even at the base of the Rose,Do not put the leaves you remove on the compost heap,they must be burnt or disposed of,your rose might look a little bear but it will survive:smile:

          EVERYTHING APPERTAINING TO ROSES
           
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          • lowrider69

            lowrider69 Gardener

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            ok thanks that should keep me busy for an hour or 2 as got 12 of them to check lol
             
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            • Gail_68

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              Hi lowrider, it's a shame and I hope you can cure it because it looks like it develops beautiful roses :)
               
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              • wiseowl

                wiseowl Friendly Owl Admin Staff Member

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                Hi @gail their is no cure for Blackspot it per say,

                The black spot fungus produces spores which are released under wet conditions and usually spread by rain-splash. The disease can also be passed from plant to plant on hands, clothing or tools. Spores overwinter mostly on the shoots, but can survive on fallen leaves and within the soil.
                Collect and destroy fallen leaves in the autumn, or bury under a layer of mulch. Prune out all stem lesions in spring before leaves appear. These actions will help delay the onset of the disease, but are of limited value because spores are bound to blow in on wind-blown rain from elsewhere.

                I never spray my Roses but if by choice you want to:dunno:


                The fungicides tebuconazole (Bayer Fungus Fighter Concentrate), tebuconazole with trifloxystrobin (Bayer Fungus Fighter Plus), and triticonazole (Scotts Fungus Clear Ultra and Scotts Fungus Clear Ultra Gun) are labelled for the control of rose black spot.

                The following products contain a combination of both insecticide and fungicide, enabling the control of both insect pests and disease: myclobutanil containing cypermethrin (Bayer MultiRose 2, Doff Rose Shield, Vitax Rosegarde, Westland Rose Rescue); tebuconazole containing deltamethrin (Bayer Multirose Concentrate 2), and triticonazole containing acetamiprid (Scotts Roseclear Ultra and Scotts Roseclear Ultra Gun). When a proprietary product contains an insecticide as well as a fungicide it would be preferable to use an alternative product if pests are not a problem on the plants treated.
                 
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                • Gail_68

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                  Hello Woo, thank you for adding the information ;) but I've got no trouble with my roses..i was wishing lowrider the best of luck in curing it :)
                   
                • lowrider69

                  lowrider69 Gardener

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                  Hi Gail_68 there called Rose Stromboli and there only about 7 months old but was really flowering well over the summer, the smaller plants photo are mine and the larger one is how they can grow if you get it right but either way a nice rose.
                  Rose Stromboli.jpgroses july 1st 2018.jpg
                   
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                  • lowrider69

                    lowrider69 Gardener

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                    All done but had to take off nearly every leaf took ages to do and they do look a bit sorry for themselves at the moment
                     
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                    • wiseowl

                      wiseowl Friendly Owl Admin Staff Member

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                      Hello @lowrider69 good job well done my friend,just keep an eye on them:smile:
                       
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                      • Gail_68

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                        Hi lowrider, it's just a shame how that's happened because it's all your roses and no other plant there to cause the issue...I just hope they flourish back for you now you've seen to them because if they do turn out to be like the larger pic...what a :wub2: display that would be :)
                         
                      • wiseowl

                        wiseowl Friendly Owl Admin Staff Member

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                        Good evening it looks like the spores could be coming through that barrier:smile:
                         
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                        • Gail_68

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                          Woo from the next door neighbours plants? :smile:
                           
                        • lowrider69

                          lowrider69 Gardener

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                          that's a lane behind that but they do come and trim it, will be putting a fence up next year, I think to get them to the stage in that photo would take a few years but ya never know, I have taken cuttings just in case cuz they were not cheap to buy
                           
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