Help With leaves curling and burning

420Brazilian

420Brazilian

Well-Known Member
Hey everyone, any suggestions on what is wrong ?
This is Neville's Haze from Green House Seeds, she is on day 26 @ 12/12.
Temps are between 70-84 degrees, Humidity is lowest 45% and highest 68%, I know the humidity is a little high, but I just place in my grow tent a new DEHUMIDIFIER W/UV LIGHT & TiO2 I got in the mail today. So let's see how it goes tomorrow.
She has been like this for about 2 weeks, I flushed thinkin it was PH problem on the soil, or over feeding. So after I flushed, the last reading I had of the run off water is PH 6.3, PPM 730. After that I let the soil dry and watered her twice with clean water with @ PH 6.5, and then a feed with PH 6.5, PPM 1000. I hate to look at my gurl and see her like this, I know something is wrong, but don't know what is wrong, NEED HELP ASAP.
 

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morrisgreenberg

morrisgreenberg

Well-Known Member
i noticed your issues are at the top of the plant is this so? lower leaves look fine from here, this may be a heat issue, you see the edges roll up like that could be too close to the lights, how far are the lights? seems you've done a lot of flushing so it cant be nutes and PH seem solid
 
morrisgreenberg

morrisgreenberg

Well-Known Member
also just might be a P or K deficiencie, im leaning more to the K side, those defs tend to attack the outer edges of the leaves, what kind of nutes are you using?
 
420Brazilian

420Brazilian

Well-Known Member
morrisgreenberg said:
also just might be a P or K deficiencie, im leaning more to the K side, those defs tend to attack the outer edges of the leaves, what kind of nutes are you using?
Click to expand...
Im using Advanced Nutrients

Sensi Bloom A & B
Mother Earth Tea (Bloom)
Carbload (Liquid)
Big Bud (Powder)

Lights are 6-7 inches from top.
 
morrisgreenberg

morrisgreenberg

Well-Known Member
well a sign of heat stress is when the leaves are folded up like a slice of pizza, how much nutes are you giving? 100% of lable strength? half>? are you going full blast with all those nutes?
 
420Brazilian

420Brazilian

Well-Known Member
morrisgreenberg said:
well a sign of heat stress is when the leaves are folded up like a slice of pizza, how much nutes are you giving? 100% of lable strength? half>? are you going full blast with all those nutes?
Click to expand...
I follow the amount that the calculator on the AD website says to use.
Heat stress... some leaves are curlin up and others down. I also have hairs that are turning red and burnig.
 
XCr4zYX

XCr4zYX

Active Member
i have a very similar problem all my nute are correct the temp is correct, not sure about humidity but its no where near high its dry as hell in there, light is far enough away not to be burning, never had this promlem before really weird never seen leaves curl inwards from the edge before ... let me know if u find anything and i will i i find anything :)
 
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