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Guide for Diagnosing Plant Problems

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

  1.  
    ADP710

    ADP710 New Member

    This is my first time growing, ive done alot of research and consider myself somewhat educated on growing but ive run into a problem with my plant growing outdoors.The pistils on one branch are turning brown prematurely. The rest of the plant looks great its just the one branch. What could the problem be?

    Bad branch
    IMG_20150901_173816_793.jpg IMG_20150901_173832_537.jpg IMG_20150901_174038_168.jpg
    Good Flowers
    IMG_20150901_173903_584.jpg IMG_20150901_174001_013.jpg IMG_20150901_174028_143.jpg
     
  2.  
    Justinsbudzzz

    Justinsbudzzz Well-Known Member

    Any thoughts on what is going on my leaves the leaves around the tops of my plant are changing color though was so to colder weather but not sure now any advice greatly appreciated image.jpg
     
  3.  
    D@ddio

    [email protected] Member

    My buds look to be a couple weeks from harvest. Trichomes are just starting to get milky and the weather has been damp and cool. Got me a Little powedry mildew. do you think I can wash it off. Looking at the link say hot waher with a mild bleach solution. do I wash everything? Its got some of my best buds and I really don't wan't to lose it View attachment 3503909 View attachment 3503909 View attachment 3503910 View attachment 3503909 View attachment 3503910 View attachment 3503909 View attachment 3503910 View attachment 3503909 View attachment 3503910 View attachment 3503909 View attachment 3503910
     
  4.  
    THCSpanker

    THCSpanker New Member

    Sup guys! Hey I know my issue but the problem of solving how to use the products properly. I got the claw a nitrogin toxicity never dealt with it before. I just went out and picked up Ph up and Down test kit, Also got the botanicare flush. But my question how long should I flush for? I am litterally only week three of flower got lots more to go. I have never used flush before I normally would just cut off nutrients 2 weeks before flower ending and use RO water. Also new to the PH up And down PH. I thought using Ro water would been fine which is what I did and had few successful grows out of it.
     
  5.  
    jabell

    jabell Active Member

    Ever see this.its a feminized critical kush seedling
     

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  6.  
    sunni

    sunni Administrator Staff Member

    its not pot, i have answered your thread itself, you have a jade succulent seedling
     
    Resinhound and woody333333 like this.
  7.  
    tropicalcannabispatient

    tropicalcannabispatient Well-Known Member

    I have a 2 weeks seedling and she's turning purple under the leaves. What this can be? Cold temperatures? Or genetics? Im growing aurora indica. Tnx in advance!!
     
  8.  
    JD11

    JD11 New Member

    Having problems here....yellowing of leaves mainly from bottom up.....not sure if it's a n deficiency or toxity or iron of calcium .. Any professional suggestions?!
     

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  9.  
    kaigas66

    kaigas66 Well-Known Member

    what is wrong with this plant? It is not the best pic, but all the leaves are like this (brown from the tips).This is an autoflower (white label seeds white diesel haze). And it is in biobizz light mix mixed with batguano. 20l soil mixed with 1l of guano.
     

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  10.  
    kaigas66

    kaigas66 Well-Known Member

    Could the soil be too strong for these autos??the leaves are getting very brown already. Can add a pic later. Advice please...
     
  11.  
    kaigas66

    kaigas66 Well-Known Member

    Is there anything to do or should i throw it away?
     

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  12.  
    jahhh

    jahhh New Member

  13.  
    Kjc99

    Kjc99 Member

    Hey guys I've been growing for about 18 months and recently switched from cfl's to a 400w metal halide grow bulb... I think my vegetative growth is behind for this far into veg but not quite sure because I've been using clones.. Also I've noticed either light burn or nute burn and was hoping to get a little advice... Any input is appreciated
    2 are lst
    Tallest one is topped
    400w m/h
    High Temps 78
    Low Temps 62
    18/6
    Open Wing reflector
    Light distance 18in-20in
    Heres a few pics 20151227_235758.jpg 20151227_235736.jpg 20151227_235804.jpg
     
  14.  
    Strangeways

    Strangeways Member

    image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg image.jpeg



    This is great but I'm colourblind.
    Suddenly All my plants whatever size have started turning yellow ?
    They're all autos under 2 x 600 Mars led lights in bio mix soil no added nutrients whatsoever tap water ph'd down.
    80x80 tent.
    It's my 2nd run 1st didn't do this but for that grow I had only 1 600 Mars but plants were tiny and low yield.
    I added the 2nd to increase yield but could that have caused this?
    I get 3 pots out of a bag of soil so there's 3 different bags used here

    I'm torn between too much light (the only change recently) or lock out, mag def, ran out of ideas to be honest so posting pics on here for someone who knows to possibly help me out?

    Any help most appreciated..doing my head in image.jpeg
     
    Last edited: Feb 29, 2016
  15.  
    Strangeways

    Strangeways Member

    A
     
    Last edited: Mar 6, 2016
  16.  
    PerfectGrower

    PerfectGrower Well-Known Member


    Justin.....what is the EC of your nutrient solution? pH?


    Lets make sure those numbers are accurate first and then we'll try to figure out what could be causing this. Sadly its a guessing game but I will give it a shot :)
     
  17.  
    PerfectGrower

    PerfectGrower Well-Known Member



    Same question....what is your current EC (or PPM) of your nutrient solution? What pH?


    It looks like a number of things. Lets make sure you're not over feeding your plants first and we'll go from there.
     
  18.  
    roachfinder

    roachfinder Active Member

    What can cause purple/red leaves on a seedling? It started on the edges and tips but not on the New growth. And they are growing slow!! Plz help
     
    Last edited: Apr 23, 2016
  19.  
    roachfinder

    roachfinder Active Member

    I really need someone's help bad....my plants are 26 days old and like 2-3" tall. I've be giving them proper amounts of base nuts and some additives.....at one point they had or have a severe deficiency tho......so I added more and they are doing good as far as color but they are soooo small. I even have a really nice led grow light mainly in the white spectrum...sometimes I even give them sun
     
  20.  
    Mrjacob274

    Mrjacob274 Active Member

    Zinc deficiency I'm guessing? Lower leaves are not dying.
     

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  21.  
    Klin

    Klin New Member

    Hi everyone. Can you please help me with a diagnostic for my plants? 20160512_132909.jpg 20160512_132918.jpg 20160512_132941.jpg
     

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