Heat stress? Nute burn?

[Xavielson]

Hello all!
This is my first female plant flowering (like 1.5 weeks). I was happy because today the sun came out like it does here in Brazil for the first time since this plant germinated. After some hours of sun i noticed some brown spots on the older leaves that went bigger and bigger during the day, at the final of the day, 3 leaves was like the first pic shows.
Im using a spanish nute for cannabis, and giving low dosages cause i think my soil is too strong.
Im pretty confused cause it looks more for me like a nute burn, maybe the sun just speed up the symptoms?
Im also uploading a second pic that shows the whole plant just at the begging of the day, notice the leaf near the center starting to turn brown. (And my bizzarre LST :p )

Thx in advance and sry about my poor english :stoned:

[Perp]

You're saying that all happened in one day? I don't know if nute burn would manifest that fast. Maybe the sunlight was too intense/hot? Otherwise, I don't know.

[FreeVenice]

It looks like it could be a nut thing but like Perp said "that happened in one day?". I don't think the sun can even do that. It might be a late notice on a lack of N, or it might be catching a reflection off of something. check for hot spots.

[Xavielson]

thx for the answers guys, and yes that all in one day.. just a few leaves, the older ones that were exposed to direct sunlight, the younger leaves still ok.
i still wonder if the sun light and the hotness r just speedin up the overfert symptoms, wht u guys think?
btw, today i made a 15min flush at the morning and im avoidin direct sunlight.

Thx, any help is welcome.

[FreeVenice]

give us an updated pic so we can check it's progress.

[xxxhazexxx]

i noticed it is out side that happend to me 3 years ago it was doing my head in cos i did'nt know what it was then i caught my dog pissing up it the piss burns it straight away, just an idea

[Xavielson]

Well today i took off the worst leaves before the flush. Now theres one leaf, that is the worst one, that im checkin every 1/2 hour and looks like the symptoms progress has slowed or stopped. Ill post a pic of this leaf and will post it again in some hours.
Haze, thx for the idea but my dog has no access to the plant.

thx again

[JackdaWack]

refrain from cutting of leaves, if they are not being used by the plant they will fall off, any cutting with stunt the plant more, it looks like a def. not a burn

[Xavielson]

refrain from cutting of leaves, if they are not being used by the plant they will fall off, any cutting with stunt the plant more, it looks like a def. not a burn

thx for the tips Jack, ill avoid cutting leaves. What def do u think it could be? cause today i started to think that its maybe a Mg def., lookin at some "sick plant guides".
The strange thing is that after the flush, looks like the symptoms had slowed down (but i cutted off the worst leaves).
I have both dolomite lime and epson salt, wich one is the best to use? Anyway i think ill wait some more days and look how the plant will respond to the flush.

Thx again for ur time guys
End Prohibition! :rasta:

[Xavielson]

Erm sry for the double post but looks like i cant edit.
I want to add this pic. Note the green veins while the rest of the leaf is losing color, thats pretty much a Mg def symptom right?
Oh god im so confused hahah, this is my first flowering female plant, im so anxious, sry for all the questions.

:pimp:

[Xavielson]

hmmm.. triple post now.. :wtf:
I got updates... looks like the plant liked the flush.. the symptoms has slowed down a lot, but the older leaves still slowly dying. Im sendin a pic of the same leaf two days ago and today, and a pic of the whole plant today.
The plant is going fine, its growin fast, flowering going on, its not a big problem rly, i just need some opinions since theres no growers around here at my place to talk about. :rastasmoke:

Thx all.