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Help please Cant identify issue

Discussion in 'Sick Plants and Problems' started by FoX_, Aug 18, 2013.

  1. #1 FoX_, Aug 18, 2013
    Last edited by a moderator: Aug 19, 2013
    HI all  :wave:  Thanks for stopping by!
     
    For info on my environment check out the link in my sig.
     
    I had/have mites! i know this for sure but I'm not seeing many more mites after i released ladybugs and trimmed leaves! 
    photo.JPG
    image_2.jpeg
    bottom right leaf is from a healthy seedling i have under flouros and the rest are from the AK-47 i have vegging under the hps!
     
    And now browning spreads...Think its a nute issue? i havnt watered in two days in fear it may be Root rot and want to dry this out... please any advice would be great!!!

     

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  2. oh and this browning occoured ovr the past two days after i trimmed alot of the similar looking fan leaves off!!!
     
  3. :smoke: *bump*
     
  4. thats a phosphorus deficiency.
    Ammonium phosphate is a great source
     
    check your pH and apply a PK heavy fert if pH is in range. (half feed always when correcting defs)
     
    Observe. If the browning/purpling stops, reduce. If not give her another dose accordingly.
     
    do a google image search on phosphorus def or visit one of the many symptoms and solution threads to confirm.
     
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