Brown stains on older leaves

[sielm]

Well, here are a couple more recent shots. The stains are not dissapearing, they actually look worse :cry: maybe this has to do with the small pot it's in, I don't recognize any kind of deficiency there, and the ph/ec values look quite normal to me...


However it's only affecting a pair of leaves (the oldest 3-bladed ones). Apart from these, the first 1-bladed leaves are also yellowing, but all the other leaves look good. Maybe there is a bit of a claw on some, too. I will not feed her anything soon, unless someone has a better idea...

Later!

 

[JM]

ph doesnt seem to bad... so I'd water with a ph 6.4 solution of water (buffered from tap 6.7 down to 6.4) with 1 tsp epsom salts per gallon..... looks like a magnesium deficiency... and maybe the start of phosphorus but give it the epsom (magnesium) and 3 days to see if it stops or progresses... dont expect old damage to heal when the problem does right itself...



1/2 tsp of molasses in that water wouldnt hurt eith cuz theres some calcium def there too i think...

https://www.autoflower.org/f7/basic-deficiencies-list-11.html

 

[sielm]

Thanks JM! I'm going to check that ASAP.

 

[agito]

ph doesnt seem to bad... so I'd water with a ph 6.4 solution of water (buffered from tap 6.7 down to 6.4) with 1 tsp epsom salts per gallon..... looks like a magnesium deficiency... and maybe the start of phosphorus but give it the epsom (magnesium) and 3 days to see if it stops or progresses... dont expect old damage to heal when the problem does right itself...



1/2 tsp of molasses in that water wouldnt hurt eith cuz theres some calcium def there too i think...

https://www.autoflower.org/f7/basic-deficiencies-list-11.html

This^