Desperately need help with a fungus/disease?

Discussion in 'Grapes and Grape Vines' started by jamespope, Sep 20, 2007.

  1. jamespope

    jamespope Member

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    Location:
    Annecy, France
    Hello all,

    If anyone can help me with my grapevine problem I'd be really grateful. I just came back to my garden after a couple of months and almost all of the vine leaves are brown in parts and fragile.

    A neighbour said that the vines might be getting too much water, but I looked at the new green leaves and they have patches of white fungus on them (pictured). i'm pretty sure these are the parts that go yellow, then brown and die.

    Any ideas what the problem might be?

    Thanks so much in advance for any help!

    James
     

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  2. Ralph Walton

    Ralph Walton Active Member 10 Years

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    Location:
    Denman Island,BC
    First guess: Downy Mildew, second guess powdery mildew. Try googling both with +grape and go to the images to compare the up close details of the affected parts.

    Ralph
     
  3. jamespope

    jamespope Member

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    Location:
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    Ralph, that's really helpful. Will check it out and post my progress!

    Thanks again,

    James
     

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