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Advice needed

Discussion in 'Growing Marijuana Indoors' started by Sir Smoqueed, Feb 11, 2022.

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Yellow leaf edges on top of canopy, yellow margins

  1. Potassium deficiency

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  2. Light stress

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  3. Heat strress

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  4. ?

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  1. #1 Sir Smoqueed, Feb 11, 2022
    Hey guys, new poster new grower.
    Was wondering what people might think my issue is here?
    Details:
    8 weeks flower GG4 from MSNL
    Soil, organic/synthetic.
    pH 6.0-6.5
    Ppm ~700-900
    Co2 bags
    Temps 22-31c, humidity <30%
    Lights=Mars ts3000 at 85% about 18 inches from canopy.

    Issue:
    Leaf edges are turning yellow. New white pistols growing, in late flower.

    Assumption: lights too close, but issue doesn't resolve with moving kolas away from light source.
     

    Attached Files:

  2. #2 Sir Smoqueed, Feb 11, 2022
    Another photo
     

    Attached Files:

  3. #3 Deleted member 1100886, Feb 11, 2022
    way hot on the nutes and light may be a bit too intense as well. looks a little crispy.
     
  4. #4 Deleted member 1100886, Feb 11, 2022
    also you should have been tapering off the nutes for awhile now. looking like your on the last push till ripe and harvest.
     
  5. #5 Sir Smoqueed, Feb 11, 2022
    Think its nute related? There are no burnt, upwards pointing tips. Also I have read that flushing basically doesn't do anything, other than perhaps conserve nutrients, so I've been feeding them a strong PK...
     
  6. #6 Deleted member 1100886, Feb 11, 2022
    I have a buddy who seems to have this type of “burn” but I know it’s related to nutes, look how dark green your leaves are so there is an over abundance of something and N is one of them, that close to the end as well it shouldn’t be that dark green, I wonder if temps are playing into it as well.
     
  7. #7 Sir Smoqueed, Feb 11, 2022
    Shit, maybe I will flush then... I'm barely putting in N other than what's in my calmag.
     
    • Like Like x 1
  8. #8 Deleted member 1100886, Feb 11, 2022
    Cal mag has a decent amount of N in it.
     

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