what are these brown spots on leaves?

[doams]

woke up this morning and found this just on two leaves whats that?

 

[stoned-trout]

whats what ...?????? yeehaw

 

[doams]

this

this

 

[doams]

duno what to make of it added some bloom with p. but thas probably not it any ideas?
those spots are greyish / dark brown..

?

 

[JamieShoes]

I cant see the pics mate...

 

[matt11]

Not really 100% myself on what this is, its a lot more grayish to almost dark then brown for sure. But if I had to guess id say its a phosphorus deficiency. Next 1 to a few feeds add more P to your NPK value. But honestly if its only on 2 leaves and doesn't progress widespread I wouldn't sweat it bro.

 

[doams]

Not really 100% myself on what this is, its a lot more grayish to almost dark then brown for sure. But if I had to guess id say its a phosphorus deficiency. Next 1 to a few feeds add more P to your NPK value. But honestly if its only on 2 leaves and doesn't progress widespread I wouldn't sweat it bro.

had to remove those two leaves coz it was spreading.. leaves curled and started drying on the edges so it was progressing badly
Added phosphorus but thats poinless when the medium is ph locked right?

All this started when my ph pen went tits up so it was probably some ph issue and not something like funghy or worse still not sure tho.. lesson learned never feed when you have no idea of what ph is your feed!

Well need to get some decent new ph pen but after a bit of research the conclusion is that unless you spend 200+ it wont last longer than few months no matter what you do
ph pens are delicate shit.. and something you need to have at least in two when one broke you sill have a backup.

 

[Green81]

Looks like a pathogen, that I was experiencing. If it's spreading you maybe should consider using a systemic fungicide, only in veg would I spray though.

 

[jammie]

make sure you look at the under side of the leaf with at least a moderately high power magnifying glass or scope. sometimes bugs feeding on the under side will cause what your seeing on top

 

[matt11]

had to remove those two leaves coz it was spreading.. leaves curled and started drying on the edges so it was progressing badly
Added phosphorus but thats poinless when the medium is ph locked right?

All this started when my ph pen went tits up so it was probably some ph issue and not something like funghy or worse still not sure tho.. lesson learned never feed when you have no idea of what ph is your feed!

Well need to get some decent new ph pen but after a bit of research the conclusion is that unless you spend 200+ it wont last longer than few months no matter what you do
ph pens are delicate shit.. and something you need to have at least in two when one broke you sill have a backup.

ifeel ya on the ph pens. If your gonna get a ph pen go with blue lab ph pen. Sure ph pens Don't typically last a long long time, but blue lab is top quality with a 1yr warrent, so you at least dont have to worry for a year.
But if your gonna spend $ go with blue lab guardian. Ph & ec probes, ph probe is replaceable and with a 5yr warranty

 

[EastCoast710]

prolly ph .. to be honest. looks like how my shit looked before I got it all straightened out

 

[doams]

prolly ph .. to be honest. looks like how my shit looked before I got it all straightened out

yep you are right after fixing ph all these strange symptoms dissapeared and never showed again!