My Ladie Got Sick, Need Help !

[kamilkaan]

Hey guys, my girl is 74 day years old and i have been thinking about starting to vegetative cycle but suddenly her leaves started to get yellow, brown and even very dark brown as you can see from pictures. i did searched for deficiencies at forum but couldnt come up with any answer can someone help me to determine the problem. thanks to all.

 

[MSH]

I'm no expert but I'm thinking maybe calcium def and phosphorus def?

 

[ken dog]

What you've got there is a phosphorus deficiency... Are the affected leaves dropping?

 

[MidwestToker]

What soil are you growing in and what are you feeding them.

My first guess would be pH too low limiting calcium uptake.

 

[ken dog]

I'm going to have to rule out calcium because the affected leaves seem like older leaves, and calcium always shows itself on upper leaves and new growth.

 

[Seamaiden]

It does, but when you look at some of those leaves it really looks like they formed that Ca-, and somehow managed to grow on. I'm landing on P and Ca here as well, but... no reddened petioles makes me think not P, but K doesn't quite look like that, either.

But for Dxing deficiencies, the idea that all of this 'suddenly' showed up, seeing how advanced it is, makes no sense to me.

The pH being off makes the most sense right now, but that's without knowing really anything else.

 

[hermit186]

When ya get here late all the good advise is already here.
I will add one thing trim the bottom leaves and the ones seriously affected.
They are a bug and disease draw like cheese to a rat.
Also you need moving air to the point the leafs move a bit but not like windy.
What is the PH your using and what is it coming out.
I believe you have the start of, on top of the C--and P? roots that are dying in response to the leeves.
You need to add and enzyme to your watering for a week or three watering's.
I have had two of your three problems in the past fixed by Sea and kendog.
They are always good advice and if you reed sea a bunch your leef problems will go away slowly but I don't
Have these problems much some strains if you mix them at same time one looks like race hourse and other needs more C

 

[kamilkaan]

Hello again, sorry for late answer. Im using biobizz light mix as medium also advanced nutrients micro grow bloom set. Ph of medium is about 6.5. i flushed my medium 4 days ago to reset the soinif there is any other factors stopping P uptake after that i put some water with nutrients for lack of phosphorus, now it seems problem is slowing down but not stopped. i want to make it to the flowering phage but without this problem. Do you have any ideas bout what should i do tostop this problem

 

[ken dog]

If it is slowing down, then you have done what you need to do... It takes a few days to a week for the symptoms to stop showing once you have stopped the deficiency.
Affected leaves will not recover, but the new leaves will not show further signs.

I see that you have flushed, and that your pH is 6 5... Phosphorus is best taken up by the plant above 6.2 in soil, and below 6.2 in Hydro.
Avoid cold spells if possible... And do not over water.