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Thread: Sick autoflower with yellow patches with brown spots

  1. #1

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    Default Sick autoflower with yellow patches with brown spots

    Morning people,

    Decided to make new thread as no one really saw it on my last post!


    - so i have dutch passion Critical Orange Punch autoflowers

    - 20/4 light schedule 600watt

    - 42 and 37 days old

    - Highs 27c lows have been 15c but added a heater and is now 18c

    - haven't PH'ed corrected yet as growing with organic nutrients and soil (PM Soil with the oldtimers nute range)

    - Last feed was 12th june with 2ml grow and 1ml bloom with 25%tap and 75%RO



    About 4 days ago which was 1 day after spraying with c no insects I saw yellowing of lower leaves with black marks, i looked it up and it could be due to PH but why would they only now start showing ph problems. Or it could be a fungus, Or burn from spraying? has anyone any idea what it is? :/


    any input will be appreciated!

    Have a blessed Day

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  2. The Following 3 Users Say Thank You to Keep Calm And Grow For This Useful Post:

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  3. #2

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    using ro water has no trace elements, shes certainly lacking in something, locked out prehaps.
    whats yer background ph/ec of your tap water if you know?
    skin it roll it lick it twist it.


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  5. #3

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    Quote Originally Posted by lipnobody View Post
    using ro water has no trace elements, shes certainly lacking in something, locked out prehaps.
    whats yer background ph/ec of your tap water if you know?
    I am not too sure tbh i will be picking up a EC meter soon any recommendations?

    I am mixing it with 25% water and its hard water.

    should i flush the soil with ph'ed water, and spray with epsom salt?

    thanks for reply

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    Is that white stuff mildew?

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    Quote Originally Posted by Kurdt View Post
    Is that white stuff mildew?
    be a fair chance its the insect spray kurdt!
    whats the brand that you used KCAG???

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    I use the C-No Insects one and that white residue is from that.

    I am going to flush with ph'ed water and epsom salt spray it on monday hope this clears it up!

    Hopefully that will sort it out!

    Thanks for the input guys

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    just so you know that the visible damage will not recover. you can tell with the changes in the new growth,the small leaves starting to grow along the stem.

    n i wouldnt with ph water mate, yer in soil not coco. flush the pot with water, jis remember to feed em after hold off on the ep salt spray until things start showing signs of it!
    Last edited by lipnobody; 16-06-19 at 01:43 AM.

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    How far away is your light from the canopy dude? youve got a lot of drooping going on from what I see. I've ran into similar problems when I've turned up the light from 250 watt to 600 watt to early in the grow too much light can cause all sorts of problems and lockouts something to consider tho.

    Sent from my PRA-LX1 using Tapatalk

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    Quote Originally Posted by Jay_GY View Post
    How far away is your light from the canopy dude? youve got a lot of drooping going on from what I see. I've ran into similar problems when I've turned up the light from 250 watt to 600 watt to early in the grow too much light can cause all sorts of problems and lockouts something to consider tho.

    Sent from my PRA-LX1 using Tapatalk
    Hey mate!

    I think you could be right it was quite close like 10inches (i didnt measure it as noticed it was close and moved it up straight away)

    I moved it away to like 18inches as some of the top canopy was bleached should i move it further away?

    Cheers

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    Quote Originally Posted by lipnobody View Post
    just so you know that the visible damage will not recover. you can tell with the changes in the new growth,the small leaves starting to grow along the stem.

    n i wouldnt with ph water mate, yer in soil not coco. flush the pot with water, jis remember to feed em after hold off on the ep salt spray until things start showing signs of it!
    cheers bro,

    Just plain tap water or RO mixed with tap and when u say feed them after you mean straight after flush or when soil is dry again?

    Thanks

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