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new growth dying!!! need help!!!

Discussion in 'General Marijuana Growing' started by jon cooley, Feb 19, 2011.

  1.  
    jon cooley

    jon cooley Member

    Ok so here's the deats:

    - Growing one plant (rascal OG)
    - using a grow lab 40 grow tent completely coated in mylar
    - ventilation is really good
    - temp ranges between 74-78 during light 66-70 at night
    - feeding every 2 weeks with 20-20-20 fertilizer
    - watering every 48 hrs with 200ml of 6.0 ph water
    - using miracle grow moisture control soil


    Now the problem, some of my new growth is dying (only on the top) and I'm seeing dark yellow spots on a few of the leaves, any ideas????? Any info is greatly appreciated. Thanks!!!
     

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    jon cooley

    jon cooley Member

    Oh and I'm only using 1/4 the recommended amount of fertilizer, so I don't think its over fertilizing
     
  3.  
    Hemlock

    Hemlock Well-Known Member

    Raise the light or lower the plant, thats light stress/burn..Notice how nothing on the bottom is burned, you can tell that coming from the outside not the inside.
     
  4.  
    jon cooley

    jon cooley Member

    Yea that is what I thought too. But I don't understand? I'm using a 100w hps that's 6 inches from the top of the plant. I've done the hand/heat test and the distance seemed fine??
     
  5.  
    Hemlock

    Hemlock Well-Known Member

    Might be the plant was just in a hot spot. But I would still raise it and rotate it everyday for a week or so and see how ya look.
    Good Luck
     

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