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Yellowing leaves and brown spots

  • Thread starter Thread starter Mambae
  • Start date Start date May 4, 2024
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Yellowing leaves and brown spots

Mambae May 4, 2024 41 Replies 9,819 Views
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Mambae

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#1
New grower what kind of deficiency could this be?
 
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Stokes

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#2
What soil are you using and are you feeding? If so, what?

I want to say early phosphorus but might be just hungry overall. Maybe overwatering but the media looks pretty dry.

I would get ready for a transplant
 
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Mambae

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#3
Stokes said:
What soil are you using and are you feeding? If so, what?

I want to say early phosphorus but might be just hungry overall. Maybe overwatering but the media looks pretty dry.

I would get ready for a transplant
Click to expand...
Im using Fox farm ocean forest with cronk liquid nutrients grow, micro, and calmag. its only in its first week of veg in a 1 gal fabric pot it looks alot bigger in the photo. watered it a day ago
 
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Stokes

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#4
I would go ahead and transplant into a bigger pot.

when i grew in ocean forest i wouldnt start feeding until the 3rd week, 2nd week of flower for autos. They generally dont need much in veg unless youre prolonging it. Its a preamended soil and nutrient lines dont take that into consideration with their feeding charts. If you have more ocean forest to transplant into that should carry you atleast until flower

Photo or auto?

Im leaning towards magnesium now, which would be probable if not for the fact that youre already supplementing with calmag
 
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Mambae

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#5
Stokes said:
I would go ahead and transplant into a bigger pot.

when i grew in ocean forest i wouldnt start feeding until the 3rd week, 2nd week of flower for autos. They generally dont need much in veg unless youre prolonging it. Its a preamended soil and nutrient lines dont take that into consideration with their feeding charts. If you have more ocean forest to transplant into that should carry you atleast until flower

Photo or auto?
Click to expand...
its a photo, maybe too much nutrients then? should i flush the plant with regular water with no other nutrients?
 
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Stokes

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#6
How tall is that pot and about how full would you say it is?

It looks like its on a 1/4 gallon pot and only filled 2/3 way full, it could be root issues, which would mean it wouldnt matter what you threw at it unless it was precisely ph’d.

Transplant asap
 
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Mambae

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#7
Stokes said:
How tall is that pot and about how full would you say it is?

It looks like its on a 1/4 gallon pot and only filled 2/3 way full, it could be root issues, which would mean it wouldnt matter what you threw at it unless it was precisely ph’d.

Transplant asap
Click to expand...
The dimensions are 8 x 6.3 inches and they are filled 3/4 I added some soil to the left pot today to add some support it was stretching a bit. That’s why the soil didn’t look wet
 

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Imzzaudae

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#8
Your not dealing with a deficiency of any kind.
Your light levels are way to high. LED lights are very powerful! What light are you using?
300w and bellow minimum 24" above the top of the plant.
Any light more than 300w should be at least 30" above the top of the plant. No closer k.
600 and above must be 30 inches and the dial set 50% to 60%.
Adjust the light and feed lightly at this age. FF is pretty hot soil so go easy on nitrogen for a while.
She will green up in a couple of weeks.
Burns in the current leaves will not go away. As the plant grows the leaves will shed.
Don't worry about this it's normal k.
 
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Stokes

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#9
Imzzaudae said:
Your not dealing with a deficiency of any kind.
Your light levels are way to high. LED lights are very powerful! What light are you using?
300w and bellow minimum 24" above the top of the plant.
Any light more than 300w should be at least 30" above the top of the plant. No closer k.

Adjust the light and feed lightly at this age. She will green up in a couple of weeks.
Burns in the current leaves will not go away. As the plant grows the leaves will shed.
Don't worry about this it's normal k.
Click to expand...


He just said the plants were leggy thats why he added more soil. The posture of the leafs above the effected leaf looks ok.

Not saying its impossible but without knowing what light, its intensity and distance is kind of irrational at this point.
 
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Stokes

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#10
How full was the pot and how often were you watering, and how much?

Also, its good practice to always fill your pots to about an inch or two from the top. If not it makes it difficult to properly measure feedings unless you’re doing it by EC. Container size is crucial in soil, it directly effects yield and plant health
 
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Mambae

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#11
Imzzaudae said:
Your not dealing with a deficiency of any kind.
Your light levels are way to high. LED lights are very powerful! What light are you using?
300w and bellow minimum 24" above the top of the plant.
Any light more than 300w should be at least 30" above the top of the plant. No closer k.

Adjust the light and feed lightly at this age. She will green up in a couple of weeks.
Burns in the current leaves will not go away. As the plant grows the leaves will shed.
Don't worry about this it's normal k.
Click to expand...
I’m using

AeroLight Wing AW200SE Full Spectrum LED Grow Light 200W at “19 from the canopy at 38% power​

 
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Stokes

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#12
Mambae said:
I’m using

AeroLight Wing AW200SE Full Spectrum LED Grow Light 200W at “19 from the canopy at 38% power​

Click to expand...

That looks pretty damn spot on imo
 
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LoveGrowingIt

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#13
I'd say it's either slight light stress or nitrogen deficiency. Most likely it's the light. FFOF should have plenty of nutrients. Light stress tends to show on the older leaves first. Nitrogen deficiency looks like that, though. It doesn't quite look like overwatering, which can show yellow new growth.
 
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Mambae

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#14
Stokes said:
How full was the pot and how often were you watering, and how much?
Click to expand...
I started both with about 2-3 inches of space in between the soil and the top of the pot. Every 4-5 days I’ve given them about a liter of water give or take. I’ve made sure not to over water
 
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Mambae

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#15
Stokes said:
That looks pretty damn spot on imo
Click to expand...
Lol yea I don’t think it’s light burn the leaves don’t feel dry or crispy.
 
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Stokes

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#16
Mambae said:
I started both with about 2-3 inches of space in between the soil and the top of the pot. Every 4-5 days I’ve given them about a liter of water give or take. I’ve made sure not to over water
Click to expand...

You should water about every other day. Plants only eat when water is available. Chemicals need to be delivered in it and microbes need a solute. In soil i typically water every other day, and feed with every other watering.

Is the media completely drying out in between waterings? Have the leaves been limp at all?

The issue could be the light, tho not directly. Light drives photosynthesis, which means that as long as its getting light and water it is trying to eat.
 
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LoveGrowingIt

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#17
Mambae said:
Lol yea I don’t think it’s light burn the leaves don’t feel dry or crispy.
Click to expand...
It's not light burn. More likely it's light stress, which first appears on the lower leaves because they have been exposed to the light the longest. It wouldn't hurt to reduce the light intensity. I'd start by raising the light to 24-30 inches above the canopy. Distance matters. It certainly wouldn't hurt to give it a try. Those chlorotic leaves, however, won't recover.
 
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Stokes

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#18
If you have an iphone the photone app is great for checking lighting. Just need a piece of paper over the lens to diffuse. Its not exact exact, but its definitely enough to get you in the ballpark
 
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Stokes

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#19
download the photone app, if youre getting over 350 for a par reading at the top of that plant i’ll send you a fem seed or two regs of your choice from my collection

You dont need a lot of light for veg. But If it has something to do with the light its not because of intensity, its because of lack of food.
 
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Mambae

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#20
LoveGrowingIt said:
It's not light burn. More likely it's light stress, which first appears on the lower leaves because they have been exposed to the light the longest. It wouldn't hurt to reduce the light intensity. I'd start by raising the light to 24-30 inches above the canopy. Distance matters. It certainly wouldn't hurt to give it a try. Those chlorotic leaves, however, won't recover.
Click to expand...
yea ill raise it a couple inches and lower the intensity, damn thats sad but at this point i just dont want things to go further and it die. thanks man :)
 
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Replies 41
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Started May 4, 2024
Latest post May 4, 2024
Starter Mambae
Forum Cannabis Infirmary

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