Heat stress or just lack of N
- Thread starter Dannoo93
- Start date
guardogz
Member
ya dan get the temps down/raise the lights. if the lower leaves are still green maybe hold off on the nitrogen. there are many(but not all) experienced growers advocating to not let the leaves yellow. also make sure ur not at the begining of a bug problem or nute issue. sorry to throw the kitchen sink at ya. my severe mite infestation was hidden behind a light burn, late in flowering. u could also check the top nugs to c if they re drier than lower nugs. rather new to indoor growing. and my burned leaves never recovered, so i snipped them. so i m guessin u ll have to rely on new growth to c if u ve fixed the prob.
Merlin34
Well-Known Member
That's not N deficiency. N def starts on oldest fan leaves from my experience as they drop off late in flower usually starting with the oldest first. At least that's always what happened to me before I started using a bit more N in flower. Now my leaves stay green the entire time. What sized light is 16 inches away?
Dannoo93
Well-Known Member
Ya I know n def starts at bottom has to be some kind of stress 1000 watt air cooled hood
Dannoo93
Bublonichronic
Well-Known Member
Sometimes the higher temps can make the plant transpire more and use more water make burn more likely to happen, I think
Bakatare666
Well-Known Member
Did all that happen at once? Or did the yellowing come first, then you fed, and the brown tips showed up?
jojaxx
Well-Known Member
Doesnt look like the end of flower yellowing that I usually see....looks more like something burning or maybe severe cal/mag problem. End of flower yellowing shouldnt have your leaves curling & crisping.....looks brown & not yellow....to me anyway......good luck to ya, hope you get it fixed.
dannyboy602
Well-Known Member
^^^i was going to say the same thing. its not temp related.