Cannaruss' Adventures In Hempy Style

[Tead]

Man... that totally looks like a heat event.
Leaf margins are screwed up. Damage only on top. Damage on the 'sunny' side of one bud. Damage reducing as you move down the plant.
She's screamin "heat from the lights!".

I get where you're coming from with the

I have some CalMag coming in the mail this week and im sure that will solve the problem.

idea.... but that doesn't look like a calmag issue to my eye. Plus, I don't usually see that amount of damage from a few missed calmag rounds.

 

[Weaselcracker]

After seeing this other pic of your lemon skunk with the weird curled leaves- I'm not as 100% sure about my iron def/cal mag/ph diagnosis I made on your other thread- but it's still my best guess by far. It looks quite close to what I had going on last year- which fit the online iron def thread descriptions to a T, and was solved by the stated methods.

What is your ph going in, by the way? I didn't read back that far. Tead is here so I'm guessing he's whipped you into feeding them at 5.6?

 

[cannaruss]

yeah, rest of plant is super healthy so all i can think is a heat issue but im baffled because my light is soooo far away from these tops. At least 30 inches with lots and lots of air flow. This is why im so confused. My PH is around 5.8 to 5.9.

 

[KingstonRabbi]

I'm not a hempy grower and don't use HPS so I'm largely speculating here.

Low moisture can contribute to light burn. Low humidity or delay in watering can cause stomata to close up, evaporation stops and heat builds up in leaf. Don't know if that's possible in hempy grow. I also changed fans around and accidently redirected hot air over a plant. Point is that other factors can combine with light to cause heat build up in leaves without it feeling hot to you. Purely speculating here though.

 

[lexort420]

When you mix your nutes ph it to around 5.5-5.6

 

[cannaruss]

Has anyone ever had an early case of botrytis? Ive seen it once on some plants i brought in from outside and starting growing inside. It started going up the stems and the small buds had no smell and no trichomes or resin. Im not talking about full grown bud rot, im talking about it hitting early in flower. the reason im asking is because im not seeing any resin production even though these plants are only 17 days into flower, am i just being over paranoid? i hope so because if i lost this whole garden i would be devastated.

 

[Weaselcracker]

They don't get into resin production really at 17 days flowering. They barely even get into flowering at 17 days flowering

 

[Tead]

I'm not a hempy grower and don't use HPS so I'm largely speculating here.

Low moisture can contribute to light burn. Low humidity or delay in watering can cause stomata to close up, evaporation stops and heat builds up in leaf. Don't know if that's possible in hempy grow. I also changed fans around and accidently redirected hot air over a plant. Point is that other factors can combine with light to cause heat build up in leaves without it feeling hot to you. Purely speculating here though.

Oh nice. Could be an issue here. I'd put my money on a much simpler form of overheat.... but this is great info that is applicable all forms of growing... including hempy.

 

[Tead]

After seeing this other pic of your lemon skunk with the weird curled leaves- I'm not as 100% sure about my iron def/cal mag/ph diagnosis I made on your other thread- but it's still my best guess by far. It looks quite close to what I had going on last year- which fit the online iron def thread descriptions to a T, and was solved by the stated methods.

What is your ph going in, by the way? I didn't read back that far. Tead is here so I'm guessing he's whipped you into feeding them at 5.6?

I don't remember preaching PH here.... but probably.

 

[cannaruss]

ok i moved these two lemon skunks out of my flower room, i just cant risk some sort of problem spreading to my whole garden. Here are more pics.

 

[Tead]

Has anyone ever had an early case of botrytis? Ive seen it once on some plants i brought in from outside and starting growing inside. It started going up the stems and the small buds had no smell and no trichomes or resin. Im not talking about full grown bud rot, im talking about it hitting early in flower. the reason im asking is because im not seeing any resin production even though these plants are only 17 days into flower, am i just being over paranoid? i hope so because if i lost this whole garden i would be devastated.

I've heard of it... not seen it in my world tho. That's a pretty fancy answer... let's wear out the simple ones before we whip out the fancy ones.
Let me grab my lab coat and stethoscope....
So, how fast did this issue descend upon the plant? Did it develop over hours, or days?
How are you measuring temps? Are you measuring at or near the plant tops? I hang a little thermometer on a bungee cord right down into the plant tops. You can use one of those hand held laser doodads too.... gots me one 'o dem.
Turn your head and cough.
Tell us of your lights. Is your HPS air cooled?
When did this issue arise in relation to your feeding regimen? Did it occur right after a feed?
Has anything happened that would be affecting airflow?

I don't feel it's a nute issue.... you'd see it in more than just the very tops. Sure feels and looks like a heat event.

 

[cannaruss]

damn crappy focus, shit shit. Anyways what i was trying to show yall is all the little buds all the way down the plant are turning brown and lost all the pistils and are very brittle and fall apart easily. This is bad news for sure. I took these two plants out of the room and put them in their own space with lots of cfl's on them. I just couldnt take that chance.

 

[Tead]

One more query from 'old doc Tead....

Since you've detected the issue, has it spread.... spread... not looked uglier where it's occurring.... spread to other growth.

 

[Tead]

damn crappy focus, shit shit. Anyways what i was trying to show yall is all the little buds all the way down the plant are turning brown and lost all the pistils and are very brittle and fall apart easily. This is bad news for sure. I took these two plants out of the room and put them in their own space with lots of cfl's on them. I just couldnt take that chance.

Ignore Tead's earlier words.
That's root rot my friend.
Float one out by flooding it and check out the roots.

 

[cannaruss]

i pulled up one of them to look at the roots. The roots are a light brown color (not white for sure) but there is no smell. I always let these plants completely dry out before watering to the point of it being feather light, then i would water. But these roots dont look too good and the pots just were not big enough, its 3 gallon pots for plants that are almost 4 feet tall. Soil would dry almost daily.

 

[Tead]

Ok... so let's talk about root rot for a minute.

There are some symptoms that you can detect before it gets to this point. Cloudy runoff is a regular one. Smell can be another hint. If one digs into the medium a bit, you can sometimes smell/feel/see rot. The cloudy runoff has been the one that tips me off most commonly.
Generally, the cause is light intrusion into the medium. Heat is another trigger and can do a dance with other triggers making things worse.

If this plant were in my garden, I'd absolutely cull it immediately. Root rot is very hard to fix and is often just not fixable. You can try to chase the rot out with H2O2 or other commercial root cleaning products.... but it will be a very long road to recovery that's just not nearly worth the effort.


Tough words... I know. Sorry 'bout that.

 

[cannaruss]

I've heard of it... not seen it in my world tho. That's a pretty fancy answer... let's wear out the simple ones before we whip out the fancy ones.
Let me grab my lab coat and stethoscope....
So, how fast did this issue descend upon the plant? Did it develop over hours, or days?
How are you measuring temps? Are you measuring at or near the plant tops? I hang a little thermometer on a bungee cord right down into the plant tops. You can use one of those hand held laser doodads too.... gots me one 'o dem.
Turn your head and cough.
Tell us of your lights. Is your HPS air cooled?
When did this issue arise in relation to your feeding regimen? Did it occur right after a feed?
Has anything happened that would be affecting airflow?

I don't feel it's a nute issue.... you'd see it in more than just the very tops. Sure feels and looks like a heat event.

i noticed from the beginning that these plants pistils did not form normally. The pistils shriveled up quite fast but the little buds kept developing. My 600 watt is not air cooled. I keep my thermometer down at the base of the stalk in the pot. I have air flow between the plant tops and the light. I use the hand method to measure heat and it was just fine. This all came to a head in about a weeks time when the tops turned shriveled and yellow. Now Doc, do i owe you a co-pay, i have blue cross blue shield of Alabama LOL.

 

[Tead]

i noticed from the beginning that these plants pistils did not form normally. The pistils shriveled up quite fast but the little buds kept developing. My 600 watt is not air cooled. I keep my thermometer down at the base of the stalk in the pot. I have air flow between the plant tops and the light. I use the hand method to measure heat and it was just fine. This all came to a head in about a weeks time when the tops turned shriveled and yellow. Now Doc, do i owe you a co-pay, i have blue cross blue shield of Alabama LOL.

Yup... root rot. It starts in veg really, but doesn't show hard until you hit the bloom cycle. I think making buds puts more stress on the plant and the problems show soon after you switch to bloom.

Oh it'll cost you.... deeply.
Sometime in the future, the Don.... errr.... Doc will ask you for a favor... one that will not be denied.... did you remember to kiss my ring? Guido, this guy isn't showing the proper respect... take him out back.

Of course, that favor will be to share your experiences with others... so not much of a looming threat... but I tried.

 

[cannaruss]

Yup... root rot. It starts in veg really, but doesn't show hard until you hit the bloom cycle. I think making buds puts more stress on the plant and the problems show soon after you switch to bloom.

Oh it'll cost you.... deeply.
Sometime in the future, the Don.... errr.... Doc will ask you for a favor... one that will not be denied.... did you remember to kiss my ring? Guido, this guy isn't showing the proper respect... take him out back.

Of course, that favor will be to share your experiences with others... so not much of a looming threat... but I tried.

yes indeed sir, i will be glad to share all mishaps and all blessings with all who will listen, thank you again sir for your time and dedication.

 

[Tead]

So, let's start talking about avoiding the issue in the future.

Can you give us a photo of the pot that held the rotting lady?
What's your medium?
You're normal running temps are around 80f.... yes?