Septoria? Deficiency? Help me please !

Bukwhokee12 · Jun 5, 2025

Eledin said:
To me that look like nutrients not being balanced. I cant see black spots inside the rings and the colors dont look like septoria so I think its not septoria but LAB is great to have anyway, just saying

I’m starting to agree with you now. The more I look at the leaves that are burnt and older. They seem to be taking the toll, it’s been two days and haven’t seen any progression with the rust of it was septoria

Eledin · Jun 5, 2025

My bad I thought you were growing in coco thats why I said that the melonhead with the new account maybe had a good point about lowering the ph but if youre using peat then 6,2 for veg and 6,5 for flower after the third week is the norm. One of the other posts I was in was coco so thats why I guess. So youre phing perfectly then. Also you have organic fertilizers and ammendments in the soil so even if its a bit higher should be fine, the microorganisms can make nutes available at 7ph.

Glomus · Jun 6, 2025

Dont trip its fine, its definitely not septoria I deal with it constantly in the tropics. The tips are fried, so maybe back off on the nutes and water in between feeds. I think over feeding comes from the idea that plants need nutrients to grow which they do but most of the energy the get to produce is from the light. First thing I do when I see this type of thing is look for bugs, especially indoors. I love how people just say cal mag def instantly, its like a meme at this point.

georginaisle · Jun 6, 2025

Bukwhokee12 said:
What do I need to do? I try to keep my ph 6.2-6.5 and it usually stays that way. Since I’m in a “bad time for ph issues” what are the cons that I’m going to be facing and

Well,the thing to do is flush the plant,then refeed with ph'd nutrient and calmag

georginaisle · Jun 6, 2025

If its septoria,which i think it isnt,it will progress pretty damn fast...id isolate the plant just in case though.

Ive had septoria a bunch of times,but never indoors,even when my outdoor plants had it bad.and high heat and humidity will cause it to thrive!i cant believe how fast it progresses...its crazy

RootFarmer · Jun 6, 2025

Bukwhokee12 said:
No sir. Fox farm ocean forest soil!

Thanks for that. Just wondering because uncharged coco can cause cal/mag issues. IMO that doesn't look like septoria.

RootFarmer · Jun 6, 2025

With all do respect, I would advise against flushing organic soil. I would encourage you to read about cations, anions and cation exchange (CEC). Your base cations won't change from flushing. Doing so will merely leach out the most important elements for your plant during bloom, such as, phosphates and sulfates, etc.

Brown spots on lower leaves is most likely due to a watering issue, a pH anomaly, root rot, bugs or temp extremes. Could be a PK booster burn going on. Red stems and purplish hues suggest a phosphorus issue. The shade of green is a bit off. Red stems and dark spotting can also happen with N deficiency and if not corrected the stems turn black. But the spotting isn't black, so probably not N or Mn. Looks more like a P and K issue. K can be antagonistic to N, Ca, Mg, while P can be antagonistic to Ca, Fe and Mn which could, in part, explain the off coloration.

You are adding microbes so it's probably best to cut back on nute strength at least 50% and possibly more. When in doubt, start low and go slow. You can always add more, you can't add less, right?

Give her just water for awhile and see if she self-corrects before taking any drastic measures. These plants can handle a lot more than you might think. I strategically abuse them all the time to see what they can take. You'd be surprised. Lol

Bukwhokee12 · Jun 6, 2025

RootFarmer said:
With all do respect, I would advise against flushing organic soil. I would encourage you to read about cations, anions and cation exchange (CEC). Your base cations won't change from flushing. Doing so will merely leach out the most important elements for your plant during bloom, such as, phosphates and sulfates, etc.

Brown spots on lower leaves is most likely due to a watering issue, a pH anomaly, root rot, bugs or temp extremes. Could be a PK booster burn going on. Red stems and purplish hues suggest a phosphorus issue. The shade of green is a bit off. Red stems and dark spotting can also happen with N deficiency and if not corrected the stems turn black. But the spotting isn't black, so probably not N or Mn. Looks more like a P and K issue. K can be antagonistic to N, Ca, Mg, while P can be antagonistic to Ca, Fe and Mn which could, in part, explain the off coloration.

You are adding microbes so it's probably best to cut back on nute strength at least 50% and possibly more. When in doubt, start low and go slow. You can always add more, you can't add less, right?

Give her just water for awhile and see if she self-corrects before taking any drastic measures. These plants can handle a lot more than you might think. I strategically abuse them all the time to see what they can take. You'd be surprised. Lol

Thank you for this!

georginaisle · Jun 7, 2025

Sorry ,i shoud have read better,i didnt realize it was an organic grow.

Septoria? Deficiency? Help me please !

Septoria? Deficiency? Help me please !

Bukwhokee12

Attachments

Eledin

Glomus

georginaisle

georginaisle

RootFarmer

RootFarmer

Bukwhokee12

georginaisle

Privacy & Transparency

Privacy & Transparency