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Black spot on roses

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  • Zoomer44Zoomer44 Posts: 3,267

    Will try spraying, is it better now to wait till Spring.

  • Busy-LizzieBusy-Lizzie Posts: 23,977

    Yes, too late now. Spray at first appearance of young leaves.

    Dordogne and Norfolk. Clay in Dordogne, sandy in Norfolk.
  • LynLyn Posts: 23,190

    So, did you find the answer to your question, Matty?. This year I didnt use nematode and have found some vine weevil in my lily troughs, is it really as easy as watering in Jeyes fluid I wonder.

    Off topic there!

    Back to roses, I spray mine with the anti fungal spray very early in the season, before any leaves have black spot, then spray about once a fortnight whether they need it or not, just in case.

    Gardening on the wild, windy west side of Dartmoor. 

  • My bush rose was blooming beautifully, suddenly the leaves turned brown and crisp and dried and the buds wilted and died and did no open. I have sprayed it, fed it watered it, cut out all the dead parts, I just don't know what to do now.

     

    What is the Jayes fluid solution and what os the mIx?

     

    Hope someone can help it was a beautiful rose, I think it is called Virgo but not too sure. It's in its second year.

  • Spray roses with a good blackspot and fungus spray. On all new new growth and old, spray regulary. The treatment usually lasts seven days, but spray any new growth or leaves inbetween. This will keep it in check.

    Make sure you prune spindly growth to promote stronger stems and thin out the centre of roses to allow good air circulation.

    Cut off all leaves that show amy sign of blackspot, rust or mildew. It might look a bit drastic, but new leaves and shoots will grow quickly after you have done it. Also cut off any yellowing leaves and cut any stems back to healthy green. This will stop die back. Die back is one of the most common reasons for roses dying if left on check.

    This year I haven't used any sprays, and have just been religiously been cutting of any sign of blackspot and my roses are floureshing. I have been growing roses for at least 35 years. I was taught this way to look after roses and it definately works.

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