diagnosis please

BobBitchen

BobBitchen

Well-Known Member
Dutch Passion Blueberry, 1st set of clones from seed-moms..
Soilless, 2x 400wt hps,indoor 4' x 4' tent, F & D, PH 5.8
,AV nutes, grow, bloom , cal-mag, karma, hydroplex, H&G r.e., supertrive, 1/2 to 3/4 sugg strenght
no bugs or mold, temp & RH good .
6 wk of flower
Happened to last batch also, maybe too late to stop now,
would like to correct for next batch !
thinking Mag diff.,
any ideas ?

yellow/brown leaf spots between veins

LeafProb.jpg

 
bestbuds09

bestbuds09

Well-Known Member
its hard to tell but it really does look like calcium deficiency. although you are already adding cal/mag it might not be enough. some mj girls love more cal/mag than others. in my case i have a northernskunk that really feeds heavy on the magnesium department.
 
I

indiapale

Member
BobBitchen said:
Dutch Passion Blueberry, 1st set of clones from seed-moms..
Soilless, 2x 400wt hps,indoor 4' x 4' tent, F & D, PH 5.8
,AV nutes, grow, bloom , cal-mag, karma, hydroplex, H&G r.e., supertrive, 1/2 to 3/4 sugg strenght
no bugs or mold, temp & RH good .
6 wk of flower
Happened to last batch also, maybe too late to stop now,
would like to correct for next batch !
thinking Mag diff.,
any ideas ?

yellow/brown leaf spots between veins

View attachment 2372642
Click to expand...
Why do you think it's a magnesium deficiency? You're adding calmag. I think you are adding too much stuff. They look pretty green and the leaves are clawing. I would flush and water with just your base nutes at half strength.
 
BobBitchen

BobBitchen

Well-Known Member

  • Why do you think it's a magnesium deficiency?

    appearance.






    • I think you are adding too much stuff.



      Using 1/2 to 3/4 suggested strenght on ALL nutes,
      I use only H2O every 3rd feeding
      Flushed w/Clearex, @ 4wk.






      ​


    ​




 
The Milk

The Milk

Active Member
Do you know what your PH is? [FONT=Tahoma, Trebuchet MS, Helvetica, Arial, sans-serif]Magnesium gets locked out of soil/soiless growing at PH levels of 2.0-6.4 Instead of it being deficient, it could have a "Magnesium Deficiency" caused by "nutrient lockou[/FONT][FONT=Tahoma, Trebuchet MS, Helvetica, Arial, sans-serif]t" caused by "high PH" [/FONT]
 
BobBitchen

BobBitchen

Well-Known Member
Been hot here, but Im not overwatering

PH 5.8

The more I think about it (bad thing!) maybe K tox, locking out mag.

Too much Hydroplex maybe ?


hhhmmm ???
 
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