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Potential Leaf Septoria / Yellow Leaf Spot

  • Thread starter Thread starter Scudders
  • Start date Start date Jun 10, 2026
  • Tagged users Tagged users None

Potential Leaf Septoria / Yellow Leaf Spot

Scudders Jun 10, 2026 2 Replies 126 Views
Page 1 of 1 · Replies 1–3 of 3
1
New Case
Case #10 Opened Jun 10, 2026 Updated Jun 11, 2026
Intake summary

Yellowing - Veg

Key grow details, workflow status, and the current best diagnosis for this case.
Primary symptom
Yellowing
Stage
Veg
44 from seed in soil
Strain
Critical Maa
Plants affected
1
1 photo on intake

Grow setup

provided details
Grow type
Indoor
Medium
Soil
Water source
rain

Environment

provided readings
Temp
26 F day 26 F night
Humidity
55%
pH
6.2
Intake photos · 1 attached View post →
Jun 10, 2026 · Intake
S

Scudders

Posts
4
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Joined
May 18, 2026
Points
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Jun 10, 2026
#1
This is my first grow and things was going well until I had a week away. Upon return, approximately day 40 from seed the plant was a bit droopy and sorry looking... with some yellowing on the bottom leaves. After pinching off the yellow leaves, and a good drink, around 24-48 hours afterwards the plant perked up and was looking good, now on day 44 and some mottled yellowing on the odd leaf which appears to be leaf septoria. Otherwise the plant looks healthy. I did read that after a period without enough water, or too much of it then it's more susceptible to leaf septoria, so it all kind of adds up.

I was planning on removing as many of the leaves with the yellowing on and maintaining the grow environment best I can with limited capacity.

Would that be the best course of action for now?

I can max out humidity at around 55%
maintain temperature of around 26 degrees c
I'm not adding any nutrients at the moment, in veg stage. but was thinking about adding some p/k 13/14 at flowering. would adding some now help with the recovery of the septoria?

no pics sorry, Image attached from a while ago, I've since downgraded to a dumb phone so don't have pics
 

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GNick55

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Jun 10, 2026
#2
Scudders said:
This is my first grow and things was going well until I had a week away. Upon return, approximately day 40 from seed the plant was a bit droopy and sorry looking... with some yellowing on the bottom leaves. After pinching off the yellow leaves, and a good drink, around 24-48 hours afterwards the plant perked up and was looking good, now on day 44 and some mottled yellowing on the odd leaf which appears to be leaf septoria. Otherwise the plant looks healthy. I did read that after a period without enough water, or too much of it then it's more susceptible to leaf septoria, so it all kind of adds up.

I was planning on removing as many of the leaves with the yellowing on and maintaining the grow environment best I can with limited capacity.

Would that be the best course of action for now?

I can max out humidity at around 55%
maintain temperature of around 26 degrees c
I'm not adding any nutrients at the moment, in veg stage. but was thinking about adding some p/k 13/14 at flowering. would adding some now help with the recovery of the septoria?

no pics sorry, Image attached from a while ago, I've since downgraded to a dumb phone so don't have pics
Click to expand...
indoors?
i don’t see any signs of septoria,,
i do see possible signs of light stress,. how close is your light?
 
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S

Scudders

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May 18, 2026
Points
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Jun 11, 2026
#3
GNick55 said:
indoors?
i don’t see any signs of septoria,,
i do see possible signs of light stress,. how close is your light?
Click to expand...
Those are the 2 leaf that are showing signs. I've now removed them. There's no other signs elsewhere at the moment.
 

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Thread info

Replies 2
Views 126
Started Jun 10, 2026
Latest post Jun 11, 2026
Starter Scudders
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