dying leaf tips unlike anything vie seen

[uhwhat]

help!
i have 3 different strains running. one and only one, my white widow, is having a bizarre issue. everyone of the leaves is dying from tips in. its not even yellowing first. they are just dying back and every blade on the leaf dies at the same speed. this is fan leaves to little bud leaves. the rest of the plant and the part of the leaf that is still green is perfect. no yellowing or stem color change. the leaves are just dying and go straight to a crispy brn. ill post some pictures. it doesn't really show much. im just confused that there is no yellowing at all, just dying. every leaf! i have looked hard both in these forums and other deficiency tables, im sorry if this is a typical post. any advice for a novice is appreciated.

 

[Corso312]

did you let the soil get extremely dry?

 

[uhwhat]

no, the soil is actually pretty wet, i considered this as a problem but its not super saturated.

 

[cowboylogic]

Looks like a pretty severe Nitrogen deficiency that has been left unchecked for some time now. WW can be a heavy feeder...not much you can do at this point.....

 

[massah]

yeah towards the end of flowering it starts sucking the life(nutrients) out of your leaves to sustain bud development when it cant get enough out of the root system...its normal for this to happen towards the end...

 

[uhwhat]

i just fed them a good dose of nutrient like a week ago, and wouldn't the leaves yellow first with a nitrogen def?

 

[massah]

i just fed them a good dose of nutrient like a week ago, and wouldn't the leaves yellow first with a nitrogen def?

its not a nitrogen deficiency specifically...its a I WANT YOUR NUTRIENTS deficiency...so either the root system is salt locked and overnuted, or its just not getting enough out of the medium anymore...and where are all your fan leaves?

 

[uhwhat]

i have about 3 weeks or so left in the cycle, would scratching in some blood meal help?

 

[uhwhat]

dead and gone! this all happened in like a week

 

[uhwhat]

maybe this is a novice thought, but all neut def i have read about start with yellowing on some portion of the leaf. is this not always the case?

 

[massah]

wait a sec...i just keep looking at the pic over and over again...you sure you haven't overnuted it? It almost looks like nutrient burn...

 

[cowboylogic]

It funny how MJ plants grown within these cannabis forums are the only plants in nature that 'naturally' cannibalizes itself while its trying to reproduce.......

 

[massah]

maybe this is a novice thought, but all neut def i have read about start with yellowing on some portion of the leaf. is this not always the case?

Nope...there are a number of things that can cause yellowing of a portion of the leaf...sometimes yellow..sometimes brown...sometimes purple...etc..etc...it depends on where it started and how its developing...

I think you overnuted it personally after looking at it closer...

 

[uhwhat]

over neut was definitely my first thought, but it just doesn't look like any burn i have seen, its just too even across the leaves

 

[uhwhat]

ps i really appreciate the help and quick responses

 

[uhwhat]

if it is over neut, should i drown the plants in an attempt to flush?

 

[ylem]

wow man, that's severe. flush her out my friend. get that soil purged to rule out any toxicity then watch your plants for hunger. the only leaf necrosis that bad ive ever seen was advanced phosphorus deficiency. after you clean that soil feed them gently with some all purpose and wait for the bounce. thats all you can really do.

 

[uhwhat]

thanks for all the info folks!

 

[cowboylogic]

I still think severe n def and heres why......

A minor N deficiency when the plant still has a good compliment of fan leaves and nutrient uptake, well it takes time to move that N were the plant needs it. Not only are the roots supplying nutrients its also drawing extra from its stores, older fans usually, from lower in the plant up too new growth.
Now once that N def is left unchecked and the plant is devoid of any fan leaves and nutrient uptake has probably slowed. The only sources of N remaining are the leaves directly connected to the flower. Not far too go and not competing with anything else to get to were the plants wants it, dosent take long at all. It can literally happen within a few days. But thats just my take from experience in a nutshell......

 

[fusion13]

holy shit that one fan leaf looks like a dragons claw lol. so did u cut all your fan leaves off? because if u did that would explain what happened, it has no place to go to grab stored nutrients or a place to go when stressed.