rusted spots on leaves

  1. C

    Leaves rusting and curling - HELP!!

    Hey guys - 3 weeks into flower and started noticing rusty patches on leaves + some curling up. Can anyone advice what deficiency this is if it is a deficiency? Strain - Amnesia autoflower Temperature = 23c, humidity = 50% In soil, feeding quarter strength biobizz organic grow and bloom nutes...
  2. 4

    Rusted spot on my ak 47

    Its flower time in the 4 week rusted spots are on the new leaves . 3x3 tent CF Grow lights 5 gal top soil i added cal mag 4 days ago using foxfarm tiger bloom for the second time so far. ph is around 5.5 temp 75 - 83 humidity and heat are is all over the place having a hard time with keeping...
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