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Need help Please!! Something’s wrong

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Need help Please!! Something’s wrong

danielbmk97 62 Replies 4,881 Views
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danielbmk97

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#1
I am trying to figure out issue with plant. Watering practice is on point, ph on point. Good light, good soil. Good ventilation. Is this nutrient issue?
 

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#2
danielbmk97 said:
I am trying to figure out issue with plant. Watering practice is on point, ph on point. Good light, good soil. Good ventilation. Is this nutrient issue?
Click to expand...
Here's a chart you can use. looks like a couple issues to me.
 

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#4

Manganese deficiency in marijuana plants​

Updated: 27 November 2023Robert Bergmanhttps://www.ilovegrowinginvalid.com/wp-content/litespeed/avatar/1bbc20584a830bc2154d2c565fcc147d.jpg?ver=1714645345
6 min. read
Comments: 19
https://www.ilovegrowinginvalid.com/wp-content/uploads/2021/08/Manganese-deficiency-in-marijuana-plants-1.jpg.webp
Manganese is vital for disintegrating enzymes, creating chlorophyll and as part of the photosynthesis process.
It also makes sure nitrates can be used for creating proteins, very important for marijuana plants.
Manganese deficiency in weed plants is quite infrequent and usually has something to do with a lack of zinc and iron.
Read this article and learn how to recognize and fix a manganese deficiency in your marijuana plants.
Information about manganese deficiency in cannabis
  1. Knowing the signs of manganese deficiency
  2. How to fix a manganese deficiency
  3. List of marijuana plant symptoms
    • Leaf color:
    • Leaf symptoms:
    • Plant symptoms:
  4. Prevent deficiencies
  5. FAQ about manganese deficiency
    • What causes manganese deficiency?
    • What are the symptoms of manganese deficiency?
    • How to fix manganese deficiency in plants?

Knowing the signs of manganese deficiency​

When new leaves begin turning yellow and show small, brown colored malignant spots in the center of the leaf, this is a sign of manganese deficiency.
Usually, the veins on the leaf stay green. The outside part of the leaf turns a dark green color.
https://www.ilovegrowinginvalid.com/wp-content/uploads/2021/08/Signs-of-manganese-deficiency-in-marijuana-plant.jpg.webp
If the plant has too much manganese, it will cause a lack of iron. Manganese is fixed and doesn’t travel throughout the plant.
The leaves could turn yellow between the veins, having speckles of brown spots on the damaged leaves.
 
#5
Looks like a late stage potassium deficiency to me

Edit: Manganese deficiency typically yellows from the stem upwards (more yellow around the base of the leaves and more green toward the tips) whereas late stage potassium deficiency yellows from the tips of the leaves inwards (more yellow at the tips, more green at the base)
 
#6
Spots on older leaves is typically attributed to a pH issue, a watering issue, a root issue, a temp issue, bugs or a nutrient deficiency. There is some browning on some less affected leaf edges. That could be a potassium deficiency. It's possible the other dark spots could be a molybdenum deficiency which is rare except if there is a pH issue, soil temps are cold, low or high temps in grow environment or there is an excess of iron. Excess CalMag supplementation can cause a nitrogen/potassium imbalance and lock out potassium. If it has added iron it could cause an iron/molybdenum imbalance and lock out molybdenum.

That being said, I second advanced potassium deficiency. It seems most likely. The question is why.
 
#7
RootFarmer said:
Spots on older leaves is typically attributed to a pH issue, a watering issue, a root issue, a temp issue, bugs or a nutrient deficiency. There is some browning on some less affected leaf edges. That could be a potassium deficiency. It's possible the other dark spots could be a molybdenum deficiency which is rare except if there is a pH issue, soil temps are cold, low or high temps in grow environment or there is an excess of iron. Excess CalMag supplementation can cause a nitrogen/potassium imbalance and lock out potassium. If it has added iron it could cause an iron/molybdenum imbalance and lock out molybdenum.

That being said, I second advanced potassium deficiency. It seems most likely. The question is why.
Click to expand...
on my post i have 2 SLH that i planted in 2 solo cups and used the same soil and water source and started at 6.8 ph and 1 plant was having issues and the other was perfect. i was like WTF once i transplanted in a bigger pot and added some more of the same soil and it is getting better, the new leaves are a nice green. i have since been giving it cal mag, liquid seaweed, and some molasses ph at 6.5. i wonder if it could be a root issue as both od these and nice rooting in the solo cup and was starting to come out the bottom. i never seen roots take off like that.
 
#8
I'm a beginner, but it looks like leaf septoria to me. I'd pinch out the damaged leaves, spritz with fungicide made for cannabis, and give it some calmag in case it's a deficiency instead of fungus. If it is a fungus, wash after plucking, have good circulation. I don't know what a good fungicide is because I've never needed it. But, that's how I'd proceed. Def pick out the bad leaves.
 
#9
danielbmk97 said:
I am trying to figure out issue with plant. Watering practice is on point, ph on point. Good light, good soil. Good ventilation. Is this nutrient issue?
Click to expand...
Not much info to go off of...lmao!

No info given and you are looking for help?🤔🤔🤔
 
#13
RhastaBlasta said:
Long conversation above, well...I'd say first - change water, buy some distilled water and water with it, add some balanced nutrients to it
Click to expand...
I use well water now and let sit 24 plus hours, than ph to 6.5. I can try that tho! Thank u. I’ll also look above
 
#14
danielbmk97 said:
What info do you want?? Lmao….. I provided some.
Click to expand...
You say ph is fine! I highly doubt that....you need a grow guide not thcfarmer.com lol...see its funny when run to forums and lack any type of common sense...common sense dictates logic!!! If you had a grow guide let's say ........ for dummies.. you have given no input variables and you are looking for help...lmao....looking for a mate to hold your hand isn't a good thing......

LOW MEDIUM PH IS MOST LIKELY THE CULPRIT HERE. YOU SAY PH IS FINE, EVERYTHING IS FINE. IF EVERYTHING WERE FINE YOU WOULDNT HAVE THE ISSUE OF LOW MEDIUM PH....THIS IS A GUESS BASED ON THE FACT THERES INPUT VARIABLE INFO..LMAO!! DONT GET SNAPPY AT ME EITHER....LOL

PULL YOUR HEAD IN! PEOPLE KEEP POSTING HELP HELP HELP!!! NOT MUCH INFO TO GO ON......
 
#16
erb4all said:
You say ph is fine! I highly doubt that....you need a grow guide not thcfarmer.com lol...see its funny when run to forums and lack any type of common sense...common sense dictates logic!!! If you had a grow guide let's say ........ for dummies.. you have given no input variables and you are looking for help...lmao....looking for a mate to hold your hand isn't a good thing......

LOW MEDIUM PH IS MOST LIKELY THE CULPRIT HERE. YOU SAY PH IS FINE, EVERYTHING IS FINE. IF EVERYTHING WERE FINE YOU WOULDNT HAVE THE ISSUE OF LOW MEDIUM PH....THIS IS A GUESS BASED ON THE FACT THERES INPUT VARIABLE INFO..LMAO!! DONT GET SNAPPY AT ME EITHER....LOL

PULL YOUR HEAD IN! PEOPLE KEEP POSTING HELP HELP HELP!!! NOT MUCH INFO TO GO ON......
Click to expand...
Sorry u are having a bad morning man. I recommend Indica for that LMAO….
Also if you wanted to come help me first hand in person I’d love to see ya;)
 
#17
Looks like cal mag deficiency at first glance. Anytime you see something you can't pinpoint I would recommend you flush and feed. It's literally a cure all for anything but pests and environment.
 
#19
JohnnySunfish said:
I'm a beginner, but it looks like leaf septoria to me. I'd pinch out the damaged leaves, spritz with fungicide made for cannabis, and give it some calmag in case it's a deficiency instead of fungus. If it is a fungus, wash after plucking, have good circulation. I don't know what a good fungicide is because I've never needed it. But, that's how I'd proceed. Def pick out the bad leaves.
Click to expand...
It’s not sep. it’s heat.
 
#20
Captspaulding said:
It’s not sep. it’s heat.
Click to expand...
So I will say. I stopped using my nuts and have been using just plain water last few feedings. I believe every other feeding I added calmag but nothing else and phd down to 6.5ish. Also my tent has never been above 84f and the lowest I’ve ever seen is 66f but it’s dialed now and stays at like 75f most all times. Could use more air in tent for circulation I do admit.
 
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