Most recent grow. Yellowing issue with burnt looking leaves

L

LukeSkybud

Well-Known Member
As the title says I'm having an issue in late stage flower. I've had issues with yellowing before but this is a bit severe, pictures to come.
As you can see in the picture believes that our yellowing started yellowing a lot less than they are now. That progressively moved out from those leaves so I thought maybe it was a nute toxicity so I flushed. Not sure what to do now whether I should keep flushing and potentially lose out on prime yield or keep pushing the nutes at half but risk getting more nanners out of one of the two plants. (One has had around 3 or 4 nanners that I have picked off delicately after misting as to not spread pollen)Snapchat-799128274.jpg20230420_071525.jpg
 
Really looks like it needs a little N, but, you could have had a lockout, don’t know what kind of nutes you’re feeding. Since you flushed (3x the volume of the pot?), it should have cleared any lockout. Go back to feeding. If you’re using calmag you might want to back off a little, an over abundance of Ca can inhibit uptake if Nitrogen.
 
Looks like they need food. If you have a ppm/ ec meter check your runoff next watering. If it’s below 5-600 you’re underfed. If it’s over 1800 you might have lockout. I’m betting your runoff will be under 175.
 
Wow I really should have gotten up here sooner. I saw one of these comments on this forum a while back... I've been using roll it up for my grows for a while... But you guys are faster than the damn police
To answer your question I use Fox farm nutrients just the big three and I recently bought sledgehammer to help flush but I haven't used it yet. To answer the second guys question I do not have a PPM meter or anything like that but I do have a pH soil test kit.
I'll take some better pictures right now
 

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93OG said:
Looks like they need food. If you have a ppm/ ec meter check your runoff next watering. If it’s below 5-600 you’re underfed. If it’s over 1800 you might have lockout. I’m betting your runoff will be under 175.
Click to expand...
I don't know why they would be under fed. I use a little under the recommended Fox farm amount... My last two grows when I used the exact amount I overfed the shit out of them. If you see my old post you can see some of the old pictures that had the same issue.
 
LukeSkybud said:
I don't know why they would be under fed. I use a little under the recommended Fox farm amount... My last two grows when I used the exact amount I overfed the shit out of them. If you see my old post you can see some of the old pictures that had the same issue.
Click to expand...
Do you feed at the same rate, the entire grow?
 
LukeSkybud said:
I don't know why they would be under fed. I use a little under the recommended Fox farm amount... My last two grows when I used the exact amount I overfed the shit out of them. If you see my old post you can see some of the old pictures that had the same issue.
Click to expand...
Notice the upwards claw on the tips? That's potassium, most likely caused by too much Magnesium from the calmag. I haven't referenced the product but I assume the calmag is carried by Nitrogen.
Then add any residual Nitrogen existing in the soil and lesser forms of it like urea, ammonical. I believe this is what antagonized your lockout.
 
op does not mention feeding calmag, just the fox farms trio and sledgehammer..

what size pots, how often are you feeding and how much, what substrate?
 
Sorry, I forgot to get super in detail with go details. So I follow the Fox farm schedule of the big three, I'll insert a picture. Like I stated before though I use about half of what they recommend and I follow the schedule strictly. 3 gallon pots with drain holes at the bottom and a drain pan. I water every 2 to 3 days using the knuckle method to tell if the soil is dry and after growing for a while,I'm sure you all know, you can kind of just tell when they're thirsty. (Big bloom grow big tiger bloom sledgehammer)

I haven't used Cal mag in this grow or do you mean like natural Cal mag, is that a thing? He did kind of lose me at the end with the urea and stuff. Isn't that what's in urine? Lol Sorry for the ignorance, everything I've learned from growing is self-taught and Robert Bergman's grow Bible ‍♂️
1682434734582.png
 
LukeSkybud said:
Sorry, I forgot to get super in detail with go details. So I follow the Fox farm schedule of the big three, I'll insert a picture. Like I stated before though I use about half of what they recommend and I follow the schedule strictly. 3 gallon pots with drain holes at the bottom and a drain pan. I water every 2 to 3 days using the knuckle method to tell if the soil is dry and after growing for a while,I'm sure you all know, you can kind of just tell when they're thirsty. (Big bloom grow big tiger bloom sledgehammer)

I haven't used Cal mag in this grow or do you mean like natural Cal mag, is that a thing? He did kind of lose me at the end with the urea and stuff. Isn't that what's in urine? Lol Sorry for the ignorance, everything I've learned from growing is self-taught and Robert Bergman's grow Bible ‍♂
View attachment 5285065
Click to expand...
Right now I'm on week 10 about to start week 11 on the 27th of April
 
Do you feed with every watering and what soil/substrate? I am leaning toward upping the nutes a little for that plant that is yellowing but, if it's a lockout issue that may not help
 
And forgive me ahead of time for the use of Miracle-Gro seed starter, even if only a little bit. I found that a little bit of it mixed in with my soil really does go a long way. That's just my personal take
 
Today is watering day, so I'm waiting on you guys to kind of help me diagnose whether I should sledgehammer flush it or increase the nutes with these last few waterings
 
Oh and I've also been watering with molasses the last few weeks in with the nutrients. Grandma's molasses one teaspoon per gallon
 
Stop the molasses and water with your normal feed rate is what I would do maybe even a little extra food. The molasses on feeds the living microbes in the soil but if it’s not a true living soil it’s causing more issues then good. So just use the 3 fox farm nutrients at a little bit higher strength than you were using. That’s my opinion anyway. I’m not a soil growing but a plant is a plant in my book
 
Like mentioned above, molasses won't do you any good if you're running chemical nutes and can cause some pretty high ph swings which could explain the lockout. I'm in organic soil and if I use it at all it's only once a week or every other week. Flushing at this stage would probably cause more issues. Drop the molasses and keep feeding per your current strength. I'd try dimming the lights a little while they are recovering. Nothing drastic but just back them off a little so they can recover.
 
LukeSkybud said:
My last two grows
Click to expand...
After looking at your 2022 thread I would suggest you do not have the same issue here. In 2022 the plant was healthy right up to when you flushed it and this one is (imo) a deficiency or a lockout from abundance. but regardless if it’s hangry or a lockout the situation seems different then the 2022 experience. My 2 cents. GL
 
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