Rusty/brown spots on leaves

brotherjericho

Well-Known Member
Overall I think my plant looks fine with the exception of some random rust or brown colored spots. Some are on the tips of leaves, but most are in a random area. I also have some spots that look like the waxy layer of the leaf is gone (you can see this in 1st and 2nd pic), leaving a dull spot underneath. These might turn to the same color as the other spots with time, not certain. But I thought I'd throw some photos up to see if any one had any pointers/ideas on what these spots could be.

Strain: Female Seeds Neville's Haze
Lighting: Pro-Grow 180 LED, both modes on, 18/6Soil: Modified "Mel's Mix" (1/3 peat moss, 1/3 compost from several sources, 1/6 perlite, 1/6 course vermiculite) with lime and 1 tbsp/gallon soil of Jobes Organics (4-4-4).
Temps: 75-79F
Rh: 45-55%
Runoff pH: 6.5 - 6.7

Not sure when I watered last, forgot to mark my calendar, I'm thinking 4 days ago or so. Finger in about 3" still comes back with very slight moisture, will probably water tomorrow.
 

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ishitar

Member
I run a mister during veg and if I ever forget to fill it those spots sometimes turn up in the morning depending on the strain, I call them battle scars. Could be P-def though.
 

brotherjericho

Well-Known Member
It's been 19 days since I've transplanted, my soil (theoretically) should have plenty of phos based on the compost and organic ferts. Might throw in a little more topdressing on my next watering though, go light.
 

brotherjericho

Well-Known Member
I think it is calcium deficiency, got my plant under LED. I supplemented it with some Ca this morning, we'll see.
 

Bad Karma

Well-Known Member
Yes brotherjericho, that is a CalMg deficiency you have there.
Follow the directions on the bottle and you should be fine.
Good luck with your grow.
 
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