Heat Stress? Nutrient deficiency?
- Thread starter Zero Chaos
- Start date
FirstCavApache64
Well-Known Member
Is it from a clone you brought in recently? It almost looks like a pest issue to me. The heat isn't doing that at 78° as that's on the cool side for LED growing. It could be light stress but we need to know the ppfd level at the canopy, what you've been feeding, and some whole plant pics would help as well.
Yeah I don't shut off my light until my canopy is 105 and other than a little bit less dense I don't see anything like that. So it isn't heat.
hotrodharley
Well-Known Member
Are you watering properly? Or sufficiently? Not too much?
I don't understand this.
"105" what?
Your AC controller app is displaying that a device is at level 4. What is that?
Severe canoeing/tacoing like that is a symptom of light stress.
Your VPD is spot on so I'd think that it could be too much wind, too much light. Add I the nute burn on the leaf tips and increased window and or light could be driving up transpiration which is causing the nute burn.
Has water consumption changed markedly in the past few days/weeks?
Phytoplankton
Well-Known Member
Looks like heat/light stress to me.
Budzbuddha
Well-Known Member
Do you have air flow / exchange in your grow area. ?
105 degrees fahrenheit. I grow without air conditioning in my house in the Mojave Desert. I've seen heat stress a lot.
^^ this you really need very good air flow too
Also if you have high heat you need low humidity I'm under 20% in the summer. That's how I can survive such high heat. I hope that clarified it a bit. Sorry for being confusing. I'm good at that.
Zero Chaos
Active Member
I turned the fan up to four to try to combat what I thought was heat stress. Tried to get more air flow in the tent.
Zero Chaos
Active Member
No, it's grown from a seed.
HydroKid239
Well-Known Member
I’d personally dim the light if it wasn’t too hot in there.. maybe even raise it higher if possible.
Not saying this is your solution, but if heat isn’t doing that, I would immediately think it was too much light. If it is too much light, they probably aren’t being fed enough to handle it. No silica added to their diet either probably.
I’m no guru, but that’s what I’m thinking.
Not saying this is your solution, but if heat isn’t doing that, I would immediately think it was too much light. If it is too much light, they probably aren’t being fed enough to handle it. No silica added to their diet either probably.
I’m no guru, but that’s what I’m thinking.
