Light burn? Heat stress? Root problems?

[BayAreaIndica]

At first thought it was light stress since I just switched to their big lights. Doubt it’s root problems since they’re not drooping? Coco coir, air pots, 1000 watts led , 85 f 37rh. Top leaves taco’d which gave the impression its light stress but as you can see some leaves in the bottom are affected but middle ones are fine ?

 

[Hobbitgoblin]

Its light, also humidity ... 1000 watt blurples?? Actual draw from the wall?

Put at 24 inches, foliar feed with be seaweed etc for stress and give a few days. That's my 2 cents g.

 

[BayAreaIndica]

Its light, also humidity ... 1000 watt blurples?? Actual draw from the wall?

Put at 24 inches, foliar feed with be seaweed etc for stress and give a few days. That's my 2 cents g.

i raised the lights as high as I can, I grew this same strain last grow but these are just way too sensitive. 1000 watt equivalent actual watt from wall is 630. Can i just foliar spray with anything I don’t know what seaweed is. Just to raise humidity?

 

[Hobbitgoblin]

Yea you can use plain water or anything at the right dose. But super thive or something with b1.
You got low humidity, high heat and sounds like strong light.
B1 will be a big up on handling stress.

 

[BayAreaIndica]

Yea you can use plain water or anything at the right dose. But super thive or something with b1.
You got low humidity, high heat and sounds like strong light.
B1 will be a big up on handling stress.

Hmm interesting. I’d have to look Into what I have that could contain b1. I didn’t notice how low my humidity was I’ve never had this issue before. Thanks for replying!

 

[Hobbitgoblin]

Yea np. I had the same issue once under a "g8 900" 600watts... Light was just to focused. Luckily i invested in the apogee par meter and quickly set it to the right distance. Temp and humidity ain't too big a deal its literally weed but all issues at once and this happens. Good luck

 

[BayAreaIndica]

Yea np. I had the same issue once under a "g8 900" 600watts... Light was just to focused. Luckily i invested in the apogee par meter and quickly set it to the right distance. Temp and humidity ain't too big a deal its literally weed but all issues at once and this happens. Good luck

What’s weird to me is I’ve grown this same strain and others at much lower distance and a third of their size as the ones I have now, and they were fine. But you’re right all issues together is no bueno. Thanks man!

 

[Bukvičák]

Your VPD (temp/RH) seems to be way too high. If I have to guess, improper treatment of the coco as well.

 

[BayAreaIndica]

Your VPD (temp/RH) seems to be way too high. If I have to guess, improper treatment of the coco as well.

By treatment of the coco you mean flushing it out before using it? 6 plants, same seeds, 3 are damaged 3 are completely fine

 

[Bukvičák]

By treatment of the coco you mean flushing it out before using it? 6 plants, same seeds, 3 are damaged 3 are completely fine

Drain to waste, feed daily…?

 

[Week4@inCharge]

air flow and more air flow..get that heat out of the tent. I freak out at 81 degress... I believe the magic numbers are no higher than 80..no lower than 50.. with swings in temps within 15 degrees ..some say 10 degress... good luck!!

 

[Hollatchaboy]

air flow and more air flow..get that heat out of the tent. I freak out at 81 degress... I believe the magic numbers are no higher than 80..no lower than 50.. with swings in temps within 15 degrees ..some say 10 degress... good luck!!

I let mine get as high as 85 with leds. I haven't experienced any problems.

 

[Week4@inCharge]

I let mine get as high as 85 with leds. I haven't experienced any problems.

do you Co2?

 

[Hollatchaboy]

do you Co2?

Nah my ppfd is just under the need for it. I don't let it stay at 85. It's generally at 82 though.

 

[BayAreaIndica]

Yeah feed every watering and plenty water drain off. I’ve had humidity up to 80% but luckily for my good airflow, never had a problem. I’m growing with leds too and no I don’t supply co2. 3 are getting beat while 3 are nice and green but all equal in growth and nodes which is funny.

 

[ComputerSaysNo]

B1 will be a big up on handling stress.

This is a myth. B1 does nothing.

 

[Week4@inCharge]

Yeah feed every watering and plenty water drain off. I’ve had humidity up to 80% but luckily for my good airflow, never had a problem. I’m growing with leds too and no I don’t supply co2. 3 are getting beat while 3 are nice and green but all equal in growth and nodes which is funny.

Just for shits, if you have a Lux meter, (not expensive) measure those areas of trouble and see if they match with what's working (non troubled areas). If they match, only other thing I can think of is genetics. (or nute burn)

 

[BayAreaIndica]

Just for shits, if you have a Lux meter, (not expensive) measure those areas of trouble and see if they match with what's working (non troubled areas). If they match, only other thing I can think of is genetics. (or nute burn)

I’ve rotated all plants around, still same ones getting affected. They’re all the same strain from same breeder, I’ve grown the exact ones before and no problem. I even want to get rid of the affected ones to avoid Hermies late flowering lol

 

[Week4@inCharge]

I’ve rotated all plants around, still same ones getting affected. They’re all the same strain from same breeder, I’ve grown the exact ones before and no problem. I even want to get rid of the affected ones to avoid Hermies late flowering lol

Few things come to mind, once your plant gets effected (yellowing, burnt) no matter where you move it, damage is done, no turning back. An what, if any, are the height differences between the two? Inches count.

 

[BayAreaIndica]

Few things come to mind, once your plant gets effected (yellowing, burnt) no matter where you move it, damage is done, no turning back. An what, if any, are the height differences between the two? Inches count.

What I meant by rotating is they continued to get worse even after rotating. Seems like it was probably light stress, possibly low humidity. They all vary from 1-3 inches in size difference. It was just weird to me how some top leaves were fine while some bottom leaves were getting affected? Probably it was heat stress / low humidity and some light stress too. Thanks for your input!