Calcium def or leaf septoria???

[Edi]

Noticed these brown spots on the lower leaves of my plants, its only on a few of them, the rest of my plants are healthy.

Growing in pure perlite and 3 parts perlite 1 part coco, run to waste, e.c 1.2 ph 5.8 to 6. Using a bunch of CFLs 105 watts.

Any help will be appreciated

 

[KushKrusher]

What’s up edi, I’m having a similar problem. The spotting on my leaves is more spotty and goldish. I was thinking cal/mag def, I drove these clones home over 2000 miles, so maybe they went hungry for nutes. I’m not sure but maybe someone can chime in

 

[voidpainter]

Edi, so some plants are in perlite and others are in perlite/coco? Are you seeing problems with both or only perlite/coco ? It usually helps to give as much info as you can. Feeding with what exactly? Have u grown this way succesfully before?

Looks like lockout/deficiency to me. But this is merely a guess and nothing more. Not familiar with this style of growing.

KushKrusher, to me it looks like a pest problem. Anything crawling under the leaf? Flying around the plant?

 

[KushKrusher]

Edi, so some plants are in perlite and others are in perlite/coco? Are you seeing problems with both or only perlite/coco ? It usually helps to give as much info as you can. Feeding with what exactly? Have u grown this way succesfully before?

Looks like lockout/deficiency to me. But this is merely a guess and nothing more. Not familiar with this style of growing.

KushKrusher, to me it looks like a pest problem. Anything crawling under the leaf? Flying around the plant?

I inspected them but didn’t find any. I did a precautionary spay with plant therapy.

 

[THC123]

Leaf septoria is so confusing ey. I also have problems recognizing the symptoms of septoria of cal def.

With leaf septoria, it always begins from the bottom up and slowly works its way upwards.

I am having the exact same doubts atm with a plant. Just discovered the spots. Will monitor them over few days to see how it progreses.

Too bad UV light doesnt kill septoria. On the birhgt side, the septoria will leave your buds alone.