Dead spots on lower leaves

danielbae

danielbae

Member
Hi,

What could this be? I must say the genetics are not prime, they are from Greenhouse seeds, but otherwise she doesn't look so bad to me. She is in BioBizz soil and she is going to receive only organic nutes. Some others have this too, 3 out of 7 plants. Im using tapwater which is fine where I live it but can be rather low on cal/mag. Is this a cal/mag issue? Thanks for any advice!
 

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Bernie420

Bernie420

Well-Known Member
danielbae said:
Hi,

What could this be? I must say the genetics are not prime, they are from Greenhouse seeds, but otherwise she doesn't look so bad to me. She is in BioBizz soil and she is going to receive only organic nutes. Some others have this too, 3 out of 7 plants. Im using tapwater which is fine where I live it but can be rather low on cal/mag. Is this a cal/mag issue? Thanks for any advice!
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Looks like a phosphorous deficiency to me....that was awhile ago. The rest of the plant looks ok to me, so just watch the new growth for signs of trouble. Research what microbes are they will help with those organics nutes.

Pik off the damaged leaves. Problem gone.
 
420_Graze_It

420_Graze_It

Active Member
Looks a bit like an Manganese deficiency but what can also cause this is accidentally spilling water with nutrients on the leaves. The ppm you'd normally feed at is too high for a foilar feed (feeding through the leaves) and will burn them if you accidentally get some on there.
 
Gond00s

Gond00s

Well-Known Member
if using led try having your room around 80f-84f my area I shoot just looks like a cal def other than that looks pretty good
 
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