Let's see and hear about your sick plants!!

[Cannasseurrr]

Ailing seedlings need help

Ailing seedlings need help

Greetings to all Cannafriends
I wish I had posted my ailing seedlings in this forum, rather than here: https://www.icmag.com/ic/showthread.php?t=337682
Thanks to any who click over to give me some insight, and if this is not permitted... I apologize for the error, but I'm anxious to learn and I'm reading as much as possible to supplement my "hands-on" education!
Stay Medicated,
~Cannasseurrr

Mods, please feel free to move this or my original post.

 

[CalMag]

Hi guys i'm growing in coco/perlite(50/50), using canna A+B, tap water (ec 0.17) and watering them at 1.2ec at pH 6.1.

They have a lot of light but when i see some problems or stress i just lift my light TILL i have solved the problem..

So today i'm going to take the 2 sick plants and check the pH in runoff..

I allways have 30-40%runoff

I'm 98% sure that this is a pH problem, i have allways pH problems at the start (they are 14days old) but i never had so much spots.. i think that everything is started by not having buffered the coco after the wash.. can you guys see something else?

Just a flush at ec 1.0 pH 5.9 will help maybe and i will recalibrate my milwaukee pen for be sure..



Thanks guys!

 

[ISM2]

Nitrogen toxicity?

Nitrogen toxicity?

I don't know what is causing this. Anyone have an idea?

Strain: Nirvana Northern Lights
Grown in 5 gallon DWC, using GH Flora Series
360w HPS
5.6pH, 1475ppm, water at 70F, daytime temp: 72F
nighttime temp: 66F, 40% RH
36 days in flower

The other plants are not exhibiting this abnormality.


I have since changed the nutrient solution and now using the full-strength Lucas ratio: 8M, 16B per gallon of water
Adjusted the solution to 5.8pH.

Save
Save​

 

[right]

leaves rolling under + a little discoloring

 

[right]

leaves rolling under + a little discoloring

anyone have any idea what this is caused by?

 

[ISM2]

anyone have any idea what this is caused by?

Sup, right!
It could be a few things but need more info.
Temp of grow room?
Humidity level?
pH?
hydro or soil?
Light source and schedule?
How long they been in veg?
Strain?

 

[hank73]

Hi everybody...
This is my second grow...sensi northern lights...
In coco perlite hempy with maxibloom..4 weeks from seed still not at full strenght feeding. Just added cal mag last feeding...and now this new growth is small and forking up...bit of burt tips...
Had this problem last time i think but 2 years ago and a stoner's memory so can't remember what i did...
Any help appreciated... Thanks
Thanks

 

[hank73]

Well from what i'm reading it looks like a zinc def so i'll go ahead and flush tonight and see what happens...
If anybody wants to chime in ... still would appreciate...

 

[ISM2]

Well from what i'm reading it looks like a zinc def so i'll go ahead and flush tonight and see what happens...
If anybody wants to chime in ... still would appreciate...

Hello, hank!
Your plants look healthy. The tips look like a little fert burn, but nothing to be too alarmed about. I'd run some clean water through the growing medium for the next couple waterings. I'm running Nirvana's Northern Lights and have noticed they don't like too many nutes either.

 

[hank73]

Thanks for the reply...
One week later... One is doing better...
The other still not growing much...Eleven pointed leaves...
They both look small to me for 5-6 weeks...
Pictures:

 

[hank73]

Ok so i thaught it was going better but i still have dark spots on leaves and some new growth are 3 bladed leaves... Some purple on stems and stalk
Raised the ph to around 6....
Giving cal mag at 5ml/gal...
On 3/4 full stenght maxibloom...
Any ideas???

 

[hank73]

More pics...

 

[ISM2]

Were the leaves with the brown spots rubbing or touching the walls of your grow room?
What's your day/night temp and humidity?

 

[hank73]

Not touching walls..
Day temps between 21-24 celsius
Night around 18

 

[hank73]

Humidity around 50-55%

 

[hank73]

Now looking like its a K def...
From what i see and read...
Lowered ph back to 5.5 and watered at 1/4 strenght with 100% runoff... No more cal mag for now...
Any ideas???

 

[Smegal]

I got a problem. My seedlings are turning yellow. And their leaves are drooping. I have two other plants doing the same thing but one of those is showing signs of nutrient burn. The seedlings needed to be repoted so I did that. And thinking they might have a nitrogen overload too, all I gave them is water. Now they are turning yellow badly. My pH meter is broken so I can't check that until I can replace it. Don't know what to do!

 

[Smegal]

I guess pictures would help.

 

[Smegal]

Well they will be dead by the time someone sees this. So I'll make an adjustment to pH and add nutes. Maybe that will work.

 

[InsaneTheySay]

Friend brought over some plants and is giving me a portion in exchange for housing them in my greenhouse. I noticed what looked to me like a possible Mag def, but couldnt find any pictures to confirm. He told me it was frost, but idk if this checks out either. only a few of the strains are showing signs of it, but others are showing signs of PM and other nute problems. The plants arent in the best condition, but Im sure they can bounce back if its a simple nutrient issue. This one stumped me and am worried as it can be seen coming in on the new growth. Ive only had the plants a few days and am giving them straight phd water. Any help disagnosing this issue would be greatly appreciated.