White/grey spots on my plant leaves - Help please

Discussion in 'Marijuana Plant Problems' started by Smokej, Oct 18, 2012.

  1.  
    Smokej

    Smokej Member

    Hi,

    I've seen this first 30 minutes ago when I came home, I have a few plants (indoor soil grow) and they have grey/white spots on their leaves. They weren't there in the morning tho.

    What could it be and how can I fix this?

    Pics included.

    Thanks

    Attached Files:

  2.  
    scroglodyte

    scroglodyte Well-Known Member

    is it mildew? does it wipe off?
  3.  
    Smokej

    Smokej Member

    I can wipe of some of it yes, gently with my fingers.
  4.  
    MrMeanGreen

    MrMeanGreen Active Member

    looks like watering residue to me.
  5.  
    Smokej

    Smokej Member

    That is not harmful, right?
  6.  
    Smokej

    Smokej Member

    Ok, now the spots are turning yellow and there is much more of them. What is happening??
  7.  
    Smokej

    Smokej Member

    Nobody knows?
  8.  
    DaBotniss

    DaBotniss Member

    Where is your growing space located? Clean very well? Make sure there is ventalation. Humidity?
  9.  
    Smokej

    Smokej Member

    @DaBotniss . It's in my attic, it is clean yes, and it is also ventilated pretty good.

    Here are the new pics, its getting worse :/

    IMG_1580.jpg IMG_1581.jpg
  10.  
    bcgrowguy

    bcgrowguy Member

    cal/mag deficiency
  11.  
    Smokej

    Smokej Member

    Double posted.
  12.  
    Smokej

    Smokej Member

    Triple posted.
  13.  
    Smokej

    Smokej Member

    I bought some epsom salt, I hope it will help.
  14.  
    Smokej

    Smokej Member

    Ok, I have the same problem on my new plants (17 days old), I've added epsom salt again but I doubt that it will help, please help

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