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Is it Black Spot ?

Hello,
My Rose is suffering from some a Disease, but I dont know which, it doesnt resemble Black Spot images I seen on Internet But since I am a newbie Gardener I dont know much. I planted it 2-3 months ago, there were no visible spots then, and about a month ago when problem began to start, I cut all the infected leaves then but when i been busy for past 1 month it spread to entire plant. Some said it is root damage but I need more opinions on what it is.


Leaves in above photo where most affected, seems like an advance stage.

Posts

  • Ladybird4Ladybird4 Third rock from the sunPosts: 30,575
    Hello christone and welcome to the forum. Firstly may I ask where you are in the world as it would be a brave person here in the UK who would have bare toes in the garden at this time of year and all my roses have dropped their leaves for winter. Your roses are showing signs of rust and you might find some helpful tips here:


    Cacoethes: An irresistible urge to do something inadvisable
  • It does look like the start of black spot. Certainly my roses have been badly affected this year due to the high rainfall. Yours are nowhere near as badly affected.
    You need to remove as many of the affected leaves as possible and affected ones that are on the ground due to the fungus spreading so easily. The next step is to spray with a black spot fungicide that most decent garden centres and DIY stores will have.
    Mine made a full recovery and were back to full health quicker than I expected.
    I'd check them on a regular basis and retreat at the first sign of it returning. It's just an occupational hazard of roses unfortunately.
  • edhelkaedhelka GwyneddPosts: 1,561
    I would say other fungal diseases than blackspot, possibly anthracnose or cercospora, but it's mild and if you are in the UK (or anywhere in the northern hemisphere), it doesn't matter because the rose will lose its leaves for winter.
  • cristone962cristone962 Posts: 3
    edited December 2019
    Ladybird4 said:
    Hello christone and welcome to the forum. Firstly may I ask where you are in the world as it would be a brave person here in the UK who would have bare toes in the garden at this time of year and all my roses have dropped their leaves for winter. Your roses are showing signs of rust and you might find some helpful tips here:


    Thank You and No, I am not From UK, I am From India, and it's only 9 degree here, so no problem with bare toes here ;) . I couldnt find anything useful here, so I decided to head over to a Good Gardening Forum in desperate attempt to get some help for my Rose Bush.
  • edhelka said:
    I would say other fungal diseases than blackspot, possibly anthracnose or cercospora, but it's mild and if you are in the UK (or anywhere in the northern hemisphere), it doesn't matter because the rose will lose its leaves for winter.
    Not here, Weather here is not as harsh as in UK and I m certain that they would not drop their leaves. I assume I should cut all those leaves then ?
  • Ladybird4Ladybird4 Third rock from the sunPosts: 30,575
    Personally, I wouldn't remove all the leaves cristone, but I would get a good anti fungal spray to treat the roses.
    Cacoethes: An irresistible urge to do something inadvisable
  • Pete.8Pete.8 Billericay, EssexPosts: 6,306
    I have about 15 roses.
    All of them get black spot every year, none of them get treated and they grow fine.
    My rambler Moonlight as usual is still in bloom as it has been sine June.
    I'd leave them alone. 
    Knowledge is knowing that a tomato is a fruit.
    Wisdom is not putting it in a fruit salad.
  • edhelkaedhelka GwyneddPosts: 1,561
    Not here, Weather here is not as harsh as in UK and I m certain that they would not drop their leaves. I assume I should cut all those leaves then ?
    Personally, I wouldn't. These diseases won't defoliate a rose and cutting all leaves may stop the spread of the disease but it can also weaken and harm a young rose more than the disease itself. Plants need leaves and defoliating too often makes them weak.
    If you are in a dry area, the rose will outgrow the disease.
    If you are in an area with high humidity, fungal diseases (black spot and others) will be very common. Is up to you if you want to spray with fungicide or live with it (it won't kill the rose but it can mean worse performance). Cutting the leaves in spring, just before a new growth spurt could make sense in warm areas but better to ask someone with similar conditions.

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