Brown/yellow fan leaves dying :( pics

[stealthbudz]

Soil or hydro: soil
plant age: 5 weeks into flower
pot size:6/11
has it been repotted? and when?: 6l pots were about 7 weeks ago and 11l pot 1 week ago
soil type: Levingtons john innes no 2
nutes or additives used and how often for soil: 4ml per litre ionic soil bloom once a week
temps (max min):17 - 21 celcius
humidity:55% - 70%
lighting type: 150w CFL
ph level: unknown

I started noticing the problem pretty much the same time I put the plants into flower. It started slow but over the last week I have seen damage starting to happen on most fan leaves.

I have 3 plants. 1x caramelo 1x northern light and 1x big bud. The caramelo got repotted into an 11l pot a week ago and the other 2 were potted into there 6l pots about 7 weeks ago, 2 weeks before 12/12. I'm gonna repot them but I need to buy the pots first. This week hopefully...

At first I thought it could be nutrient burn so on there last water I just gave them a plain feed but that seems to have made the leaves start to turn yellow instead of just brown. So that got me to thinking it could be a deficiency because I've only been feeding with a half measure of nutes.

I don't know if it could be anything to do with Ph levels, I have a liquid testers but it's hard to tell the result... I think around 6.5 - 7.0. I know its a big difference but im gonna buy a better test right away.

Here are the pictures... I'll let the knowledgeable decide...

Heres a picture of the Ph results, looks about 6.5?

IMAG0422.jpg

How it started...

IMAG0425.jpg

This is how most leaves look

IMAG0423.jpg

And a couple shots of the yellowing seen after the last plain feed

IMAG0430.jpgIMAG0431.jpg

So do you think it's deficiency due to under feeding and the soil being all used up?
I should also mention the the soil is quite compact and hard when it's dry... I read that can lockout some nutrients...

I know it's quite late but I know none of you are asleep lol Hopefully anyway

[baza123]

im sure some one will come a long and tell u what that is, i had the very same thing last year with one leaf at the bottom of a plant, never found out what it was

[stealthbudz]

aww, nobody?
checked the plants and they look a lot worse than yesterday I just want my healthy babies back :'( If there's any more information I can give to help just let me know... Off to work be home to check your comments about 6... I hope someone can help me

[Grandad]

soil for weed should be loose and uncompact with pearlite to help airation and you really shouldn't be repotting in flower(last repot usually at least a week before 12/12).
what are you feeding and how often and are you letting your soil dry out completely before watering agin? what height are these plants?

[Poet]

I dont know about anyone else but that PH test looks a lot greener than the 6.5 or the 7.0, I would guess that its a lot higher than that.

[stealthbudz]

soil for weed should be loose and uncompact with pearlite to help airation and you really shouldn't be repotting in flower(last repot usually at least a week before 12/12).
what are you feeding and how often and are you letting your soil dry out completely before watering agin? what height are these plants?

I didnt plan on repotting but I thought the problem could have been cause of the roots, so I repotted it to see if it would help... but what damage could happen from repotting during flower?

The soil was a bad choice on my part, I'd heard JI was good but I didn't know how essential it is to have perlite mixed in. Beginner mistake. Theres nothing I can do about the soil now though...

I have fed the plants once a week 600ml each with ionic bloom 4ml per litre and the plants are about 2 and a half foot.

I dunno if I wasn't feeding them enough nutrients? It seems like it could be the prob as the soil feeds for about 6 weeks... Should I give them a full dose feed? and maybe a flush to get any crap out?

[stealthbudz]

I dont know about anyone else but that PH test looks a lot greener than the 6.5 or the 7.0, I would guess that its a lot higher than that.

According to the test anything higher should be blue... but it's a real crappy tester.

[stealthbudz]

Really off to work now, had time for one more jay lol

[stealthbudz]

What should I do????

[illearth67]

Hi m8 you have some problems you need to sort out. The leaf damage is deficiencies so you need to feed more often and using full strength nutes at this stage of flower.
You won't get a big yield cos you are using a small 150W CFL and it's not powerful enough for 3 flowering plants so lack of light is probably contributing to the problem. You need a good light a 400W HID at least.
Don't re pot plants during flower cos it stresses them and slows down growth all re pots should be done in veg.

[Grandad]

^^ what he said, that's good advice.

[stealthbudz]

I will feed them right away... I had a feeling that was the prob but I didnt want to feed them and make it worse... Thanks for helping mate, Hope it is the solution.

[pete t]

hi i have 2 big bud & 5 big bomb about ten days in front of you, im using ji no3 i had the exact same problems with my plants.
the bud sufering more than the bomb. in my case it was a ph problem..
i only worked it out when i checked back through a basic diary i keep, i was givimg em 6.00ph for some unknown reason thus locking out mag.
so my advice would be try and get a decent ph meter if possible.. keep a diary/notes on the watering..and finally
spend what time you can reading on here. some great soil diaries in the organic section
im on my first solo grow and its going ok thanks to THC talk..
all the best
PT

[stealthbudz]

Can anyone give some advice on the best way to feed these plants. I've been doing it once a week with about 600ml for 6 litre pots... Is this way fine or should I do it twice a week?

I was thinking 400ml fert leave to dry 3-4 days water 400ml plain and repeat...