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Thread: Need help

  1. 05-07-17, 11:43 AM #1
    Weedsmoker73
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    Default Answered: Need help

    Hi I'm growing in DWC . Using canna , but I been using cal mag in every feed would this be a sign of cal mag overdose or defiance. There in Week 2 flower but as clones I feed them cal mag with every top up. Need to find an answer I'm clueless as it's got me stumped! It's like rust on the leaves.
    And on newish leaves. Anyone any idea? I'm using Leds and CFLs.


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  2. Best Answer - Posted by joker_the_smoker

    "picture will help..."

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  4. 05-07-17, 11:44 AM #2
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    M_C
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    What PH & EC are you running?
    It's Not What You Know, It's What You Can Prove
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  6. 05-07-17, 11:51 AM #3
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    joker_the_smoker
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    picture will help...
    .
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  8. 08-07-17, 11:27 AM #4
    sodangerous
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    Default



    I've had this on every grow I've done, the last grow I did I added cal mag for the first time and it didn't seem to make any difference.

    Always had good yields with lovely buds so not too worried but would be good to find out what it is.

    Seems to come on after a few weeks into veg in my case?

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  10. 10-07-17, 07:47 AM #5
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    How many leaves are affected (loads) or not many,where on the plant??
    Top,middle or bottom
    Davo
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