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Thread: Repeat leaf problem

  1. #1

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    Default Repeat leaf problem

    I had this problem with one of my plants last grow, nasty plague like lookin shite, black spots covering leaves, came thick and fast last time. Noticed it on most the big leaves at the bottom tucked away and one ( the smaller one) in the middle. After looking at a chart maybe it's potassium def? Or maybe Leaf septoria? Only been fed twice starting on 18/4. First time 1/2 ml per ltr of veg/bloom and 2nd feed was 1ml veg / 2ml bloom per ltr, takes about 3-4 ltrs each time. Maybe just underfeeding as its nearly twice as big as the other 2?

    I'll add aswell that the lower leaves affected have gone yellow too like they're slowly being drained


    Soil or hydro or coco: SOIL

    Strain: PURPLE LEMONADE

    Photo or Auto: AUTO

    plant age: ABOUT 5-6 WKS

    pot size: 16 LTR

    has it been repotted? and when?: YES ABOUT 2 WKS OLD-- 3-4 WKS AGO

    soil type: PLANTMAGIC PLUS

    nutes or additives used and how often for soil: ORGANIC PLANT MAGIC FED TWICE IN 8 DAYS AT 1/2 ML VEG/BLOOM PER LTR...2ND TIME 1ML VEG AND 2ML BLOOM

    Air temps (max min):25-27C

    Res temps (max min):

    humidity:40-50%

    lighting type and wattage (hps, led, cfl): 150W IS LED @ 100W + 250 DUAL SPEC HPS

    Light schedule: 24





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  3. #2

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    Looks hungry to me....
    It's Not What You Know, It's What You Can Prove

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  5. #3

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    Default

    Yeh man, didn't even take in to account it's bigger so will need more...doh. It was fed on thursday so even though it's only halfway to needing watering would ya suggest feeding anyway? Maybe at recommended dose for this one?

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  7. #4

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    Default

    I'd probably split the feed 50/50 veg/bloom & (I think) 4ml is recommended? If so, 2ml veg & 2ml bloom - and go from there

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  9. #5

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    Nice one man, least I got on it earlier this time, last plant was covered in it by chop, weirdly my best effort yet bud wise

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  11. #6

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    Checking in with this girl again. These photos were taken just now. Since last post I've fed her twice. First time like M_C said 2ml veg+bloom and threw 4 ltr in. Second time was yesterday as it was already light enough for me to know it had been a greedy bastard lol, nearly threw it in to the light so I fed it again and as there were signs it had carried on getting worse I fed 2ml veg + 3ml bloom + 1ml pk 4-8 per ltr and again did between 3-4 ltr. Already today it's lost half the weight and it was fookin heavy when it went bk in yesterday after its feed. So should I just keep feeding it do you think? More veg + bloom and drop the pk? Looks similar to potassium def from charts I've seen thats why I added some pk boost. Temps around pots are around 21-23c (tube heater on the floor) . Seems to only be on one plant atm, last one I chopped had this right to the end, didn't effect the bud, just looked nasty






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  13. #7

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    Just been reading about something called Black Spot Fungus, ever heard of it? Looks like a contender maybe

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  15. #8

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    Do you have soft or hard water?

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  17. #9

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    Says its hard

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  19. #10

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    A shame, I was hoping you would say soft

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