could this be just powdery mildew

Discussion in 'Pests and Plant Problems' started by greenjah, Feb 25, 2016.

  1. greenjah

    greenjah A Fat Sticky Bud

    I have a lot of yellowing of leaves on the lower inner of the plants.


    I am constantly battling PM and can only think that it is the problem but now i see a bit of a different look to some of the leaves.


    I am still using GH useless formula with calmag. It isnt all of them but it is the ones that had the PM the worst before i sprayed with Dupont fontellis. Now it is like i am getting the PM damage but not seeing the white powder and some leaves look to me like a phosphorus deficiency but that should not happen with the useless formula


    PH is 6.4 at fresh mix and 6.1 if it sits for a day.


    This is the look that looks like P deficiency but i am wondering if PM could do this


    [​IMG]


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  2. ResinRubber

    ResinRubber Civilly disobedient/Mod

    Still looks like mildew to me. How's the RH? You tried simple 3%H2O2?
     
  3. blazerwill420

    blazerwill420 Fuck AUMA

    Doesn't pm soltions change the ph of the leaf? i thought that is the mechanism that actually kills the pm.
     

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