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Guide for Diagnosing Plant Problems

Discussion in 'Marijuana Plant Problems' started by shenagen, Dec 13, 2007.


    Kashmoney Member

    I am a new grower and experiencing some problems early on...I have 5 clones that are only a week and half old they have been potted for roughly 5 days, I am having issues with yellows spots??? I messed up by feeding them nutrients a couple times when they need to be fed water for first 2 weeks. But I'm having real issues with one of them I've attached a picture. If somebody could help me diagnose the problem would be much appreciated. IMG-20161118-WA0000.jpg
    Crisis Manager likes this.
    mark rubino

    mark rubino Member

    This is the result of just water being fed?

    808newb Well-Known Member

    While not a new grower, I do occasionally come across a problem. I have two plants that have leaf issues that I'm trying to figure out. The first one is a fem cross of blue ox and sour blackberry diesel (very dark leaf petioles).
    It's in a 3 gallon pot and really haven't done anything else different...all my plants are on the same flowering or veg cycle with the same nutes respectively. It's almost 2 weeks since flip and last time I fed was two weeks before flip.

    Same goes for this mostly sativa cross but this one I potted up to a 5 gallon a week before the flip because I knew from the parents this would outgrow the pot very quickly.
    Both of these plants had this before flowering but the one I repotted seemed to grow out of it. I can't tell if it is the same problem and just the totally different types of plants (very indica/very sativa) is the reason for the variation between the two, as far as the leaves are concerned. I originally thought the dog peed on them because he pisses on everything lol. Any leaf Dr.s out there that's seen something similar?​
    jessluvstosmoke likes this.

    808newb Well-Known Member

    No ideas?
    Ismail me7sen

    Ismail me7sen Member

    Does this look like heat stress or does this strain grow like this its bluetooth strain(auto blueberry crossed with sweet tooth) its an autoflowering strain

    TrippyConcious Member

    Great guide, this is dope! Very resourceful and helpful.

    Delta-9Pyromaniac Member


    ukgrower87 Member

    Help Plz 20170201_143442.jpg 20170201_143449.jpg 20170201_143457.jpg 20170201_143513.jpg 20170201_143524.jpg 20170201_143520.jpg
    Is this a simple nitrogen deficiency or something I'm missing, they are potted in soil ph is between 6.5-6.7 my standard water comes out at 0.8ec. Used no notes until a few days ago and have added plagron terra grow and up ec to 1.0 for 1 feed.
    Roger A. Shrubber

    Roger A. Shrubber Well-Known Member

    looks more like mag than N to me, but a light feed in ph'ed water couldn't hurt either way. make sure they're getting a chance to dry out a little between watering

    Mrjacob274 Member


    TheGreenNaton Member

    Hello, I'm looking for advice. It's my first time growing Northern lights, and i am growing it the same way i did Cinderella 99 but i don't know if the strain has different nutrient requirements, since this coloration happened to lower leaves. I read it could be Ph, or calcium, or even Zinc, but i would appreciate an opinion from a more experienced grower.
    Or maybe it is normal for the third leaf - the second one is already yellowish - (following the cotyledons) to just die away this quickly (26th day of grow from seed)?

    Thank you very much for any helpful advice.
    20170206_113302-1.jpg 20170206_115429.jpg
    Last edited: Feb 6, 2017

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