Heat stress? Plants dying?

circle ting

circle ting

Active Member
Hello guys its been a while since I've been here, it seems my plants are in real big trouble for the first time in 10+ years I'm guessing it's that god awful heatwave that's screwed them over, but I'm unsure of what steps to take next... it seems like ever day that passes more leaves are dying, the future bud sites are crimping up turning brown and dying, I'm wondering if these are savable at this point.. ill attach some videos, thanks guys much appreciated
 
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5dekades

Active Member
had similar happen, but my were budding... was testing if the heat would be bad....and it was:| or at least that's what i figured... have some from same plant outside, they look fine
 
circle ting

circle ting

Active Member
YardG said:
I'm confused, I would have expected to see bottom leaves and branches dying, not tops. What kind of lights are you running, how close, etc? Spraying?

Also, hydroponic?
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Thats Exactly what I'm thinking, I've never seen this before its baffled me :|
I'm using:

canna coco proffesional

Led Mars hydro lights 500w to veg, around 4ft away

Half strength nutes as always

Occasionally been spraying when lights are off
 
circle ting

circle ting

Active Member
Homegrown Hero said:
As Herb and Suds mentioned, the medium completely dried out at least once during the plant’s life. I’ve seen this before, I’ve done it before lol.
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Oh... well I can whole heartedly say my medium has always been wet, I monitor them every morning and night time, I think the heatwave just destroyed them, the room temps were probably around 46 for 3 days which is just ludicrous, but I had no means or way to cool the room down, I'm going to try to save them every way possible but, I'm not holding out any Hope ‍, thanks anyway
 
circle ting

circle ting

Active Member
Billy the Mountain said:
It's unlikely heatwave related since the entire plant would suffer.

The contrast between healthy and completely fried parts is stark.

Did you spray something on the damaged parts?
Light too close for a day?
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It really does look like I've fried them by wetting them and putting a light too close but I can say I haven't, I'm pretty sad about the plants but I'm actually more confused than anything!

I do spray occasionally but when lights are off so they're dry when they come back on

Also lights were 3 to 4ft away Led lights that run relatively cool,

I calibrate my ph pen every time before I water, it just sucks because I take alot of precautions for this not to happen ‍‍
 
circle ting

circle ting

Active Member
Killaki said:
Whats your root zone look like?
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Quite stringy, lifeless looking I'm pretty sure they're gonna die, it's as if I never watered them for a long time, but I do it every day or 2 without fail, it's been the same grow routine for 10 years or so and this has never happened, very depressing to say the least
 
Killaki

Killaki

Well-Known Member
circle ting said:
Quite stringy, lifeless looking I'm pretty sure they're gonna die, it's as if I never watered them for a long time, but I do it every day or 2 without fail, it's been the same grow routine for 10 years or so and this has never happened, very depressing to say the least
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If the roots are struggling the plant will struggle. If the rootball is showing signs of rot or illness it could be the explanation of your problem.
If you're looking at the roots just under the surface they are designed differently than the tap root/rootball, and are thinner and darker in color. If indeed you lower root structure is experiencing a problem you'll either want to treat the problem or just start over.
Final thought- if you're in coco and watering every other day at times does that mean you're letting it dry out at times? Because this would be problematic.
 
N

Nope_49595933949

Well-Known Member
circle ting said:
Quite stringy, lifeless looking I'm pretty sure they're gonna die, it's as if I never watered them for a long time, but I do it every day or 2 without fail, it's been the same grow routine for 10 years or so and this has never happened, very depressing to say the least
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I'm surprised you didn't water then every day or more with heat like that.
 
circle ting

circle ting

Active Member
Ah I was just talking about the few roots I could see at surface level when I dug down a little bit to check, I don't let the coco
Nope_49595933949 said:
I'm surprised you didn't water then every day or more with heat like that.
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I recently switched back from dwc for a change, and I guess I miss calculated how bad it was going to be I've never experienced that kind of heat, I guess it's a harsh lesson I've learned
 
Mechman60

Mechman60

Well-Known Member
So is this a grow tent, must be hot in the home. If not try dimming your lights and run fans. I live in AZ and I have to acclimate my girls to 85°. I'm lucky it's dry here, about 40% rh. So How's yours?
Also I moved my tent early on to near an A/C outlet it made a world of difference now I can run stronger lights.
Either way I'd like to know how it goes. Thanks
 
Romis

Romis

Well-Known Member
What were the high and low temps for your space? Poor girls look like they got burned from heat stress + light burn
 
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