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Thread: HELP! Yellow spots on lower leaves

  1. #1

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    Question HELP! Yellow spots on lower leaves

    Hello. My plant has yellow spots on lower leaf since 11 days. I think it happened after i transfer it to the 5 lt pot. Before the last watering, ph was 7.5. But at the last watering i gave 6.5 ph. I search for the disease but i couldnt decide which one is it. Or if there is a bug or spider or fungus problems. I need your help! Thank you all.
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  3. #2

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    Could be calcium deficiency could be leaf septoria .. among a couple other things...

    What medium, what temps, lighting? Airflow? Ventilation? Humidity? what feed schedule (include nutes measurements if applicable)?

    Looks like soil perlite with some peat or Coco coir chucked in...

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  5. #3

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    Biobiz light mix soil, generally %60 hum and 21-24C degree at day 19-21C at night time, 6pcs 23w/100w cfl light and enough air flow and vantilation keep G room fresh. The plant is in the 35th day and except light mix soil i didn’t give her any nutes till the last watering. 2 days ago i gave her 1lt/1ml canna tera vega.

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  7. #4

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    That's a little on the cold side, VB. 25 to 28C would be better.

    I don't think it's a huge problem - those lowest leaves will always go shitty first.
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  9. #5

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    It'd help to see some full-plant pictures, mind you.

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  11. #6

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    sure, thank you.
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  13. #7

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    You have bought a premium soil veryberry, when you say pH 7.5 and 6.5 is the 7.5 as it comes out of the tap and the 6.5 after you have meddled with it with pH down?
    If it is 7.5 out of the tap why not let the soil do the job and buffer it for you?
    Good looking plant btw
    Last edited by Greengrass; 04-03-21 at 11:25 PM.

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