Redness/Black Spots/ Yellowing/ HELP!

Discussion in 'Marijuana Plant Problems' started by Swjsh, Sep 13, 2017.


    Swjsh New Member

    I have been searching on line and am thinking it might be due to potassium or possible magnesium.
    About a month ago I noticed black spots on about 3 of the bottom fan leaves, the next day the spots were on about 5-6 fan leaves and I cut them off. When I woke up and checked on her there are spots on higher leaves and not just fan leaves at that. Some of her leaves are clawing a bit and really getting effected as the morning goes on. I have just watered her with a bit of nutes ,(1gal x 1/2 tbsp), (provided pics below) She was moved into a 5 gallon pot roughly a week ago. Could this be from stress or a pest?

    She seemed to take a liking to her new pot and I saw growth. She has shown signs of leaves clawing and also shriveling. Her leaves are being affected by something and I cannot figure it out. I am desperate as she is about to start flowering.
    I am suspect it might be a extreme magnesium/calcium deficiency OR A possible infection of some kind?
    I just tested the PH of her soil and it was normal, if anything it was a bit on the lower side, not by much at all.

    These are updated pictures of her this morning 9/12/17
    . Its killing me to rip off leaves every day I’m scared she’s going to get consumed by this. Every day there are new leaves I don’t know what to do! Can anyone diagnose this or provide some type of help! Please and thank you everyone!

    Resized_20170903_105204.jpeg Resized_20170903_105217.jpeg Resized_20170903_105234.jpeg Resized_20170903_105248.jpeg Resized_20170903_105300.jpeg Resized_20170913_073715.jpeg Resized_20170913_073723.jpeg Resized_20170913_073750.jpeg Resized_20170913_073923.jpeg Resized_20170913_074451.jpeg This is her 3 weeks ago, Below is her on 9-12

    What Strain is it? Unknown seed from a good bag
    Is it Indica, Sativa or Hybrid? ?
    How Many Plants? 1
    Is it in Vegetative or Flowering Stage? transition to flower
    Indoor or Outdoor? Outdoor
    Soil or Hydro? Soil
    If Soil... What is in your Mix? Fox Farms Ocean Forest
    If Soil... What Size Pot? 5 G
    Any Pests? Don't know
    How Often are you Watering? 3-5 days
    Type and Strength of Fertilizers used? Hot soil (FFoF) , 3 doses so far of base bloom boost(in pic)

    Thank you in advance for reading!

    Swjsh New Member

    Resized_20170913_074451.jpeg Resized_20170913_074459.jpeg Resized_20170913_074021.jpeg Resized_20170913_074546 (1).jpeg Resized_20170913_074530.jpeg

    It would not let me post additional pics as this is my first one, I am posting this in hopes of saving my girl before shes dies flowering in my arms :(
    Any help super appreciated!
    leather lungs

    leather lungs Well-Known Member

    Might be a fungus called septoria

    drsaltzman Well-Known Member

    Definitely leaf spot. Could be septoria or one of a number other fungi.
    Any other plants nearby showing signs?

    Swjsh New Member

    Thank you both for the responses so fast.
    I suspect it to be Septoria.
    My girlfriend is growing tomatoes and we both started our girls in the middle of the summer, too late.
    The tomatoes do seem to have browning leaves.
    Going to weed the garden asap, move the girl away from the tomatoes & look at some organic fungicide.
    Will definitely update!
    leather lungs likes this.

    Swjsh New Member


    It has been in ocean forest its entire life after 2 1/2 weeks, PH measures normal according to the tester I bought. After giving her quite the hair cut she seemed to perk up a little bit and kicked over into starting to form her buds. I noticed today more yellow spots though, worried these will affect my outcome!!

    What Can I DO???

    leather lungs

    leather lungs Well-Known Member

    I would check for bugs. Maybe spidermites.
    Demonsparkx likes this.

    Demonsparkx Member

    I really want to second that,im not all too keen of a grower but from what ive experienced first hand learned and seen online,the last photos looks like something caused by mites.

    legalcanada Well-Known Member

    the black is their shit :P confirm w/ hand loupe or microscope. check underside of leaves too. method 1 pps, solution of sugar/water i think also works even

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