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Thread: What could this be? Toxicity or deficiancy?

  1. #1

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    Default What could this be? Toxicity or deficiancy?

    Symptoms:
    Yellowing/ light green leaves
    Burnt tips
    Dark/purple veins
    Brown spots

    Info:
    Just fought off some mites with a hot shots pest strip.
    Mainly in the middle of the plant but also on a few tops.
    Just fan leaves not the sugar leaves.
    Noticed today after last nights water.
    Week 5 of flower
    3x3x6ft tent
    Plenty of light and ventilation.
    Flushed it with a ton on water after removing most effected leaves and put back in tent.
    The plant on the left is the only one effected.
    Both receive same nutes and water.
    First grow. Help.




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  3. #2
    Macky Guest

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    What’s the medium mate?

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  5. #3

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    My first guess would that this is PH related. Many lockouts or burns happen when the PH is wrong for nutrient uptake.

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  7. #4

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    Think we need more info.

    What nutes you using? How often?

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  9. #5

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    I'm using the general organics go pack and I use them every 3rd watering. The water I have been using is at 8.8ph, although I haven't had any problems till now.

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  11. #6

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    Also soil is the medium.


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  13. #7

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    Quote Originally Posted by RyeGuy View Post
    I'm using the general organics go pack and I use them every 3rd watering. The water I have been using is at 8.8ph, although I haven't had any problems till now.

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    I am guessing that your soil had lime so it balanced the 8.8 PH for some time. At this later stage the soil may have lost its ability to balance the PH and you are getting nutrient lockout from the high PH. Just my guess.

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  15. #8

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    Also, any idea of the ph when mixed with feed. If your water is 8.8 and your feed is 4.5 then the PH fluctuations may be the issue.

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  17. #9

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    Ph fluctuations

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  19. #10

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    Needs to be 5.5-6.2

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