Root Rot?

[jimbojones5678]

Hi everyone,

 

I have a few Critical Mass plants on the go, trouble is they just aren't growing very well.

 

The clones are nearing 7 weeks of vege and are only 10-15cm tall, with strange leaf deformations, and dying back starting at the base.

I'm really pissed cause that's a lot of juice being used for nearly no results. My mate has the same strain at the same age and they are over two feet tall.

 

It was suggested to me that it could be root rot? The roots I can see near the top are an off white with some brown but I think that's some staining from the clay...???

 

They get the best of everything - new bulbs, rhizo, cannazym, nitrozym, sensi a+b, superthrive etc and the air exchange is awesome. EC is still sitting at 1.0 and ph is between 5.6 and 6.3

 

Water temps in res are 24C and the room temp is cool at 20C

 

Feeding times are 3mins every 3 hrs

 

Can anyone throw an opinion at me? Any suggestion would be great cause I'm about to bin them and start again

 

Jimbo

Edited June 8, 2009 by jimbojones5678

[need4weed3]

I have just had a similar problem

were yours in rockwool?

if you dont have enough roots on the clones

before you start to veg root rot is a problem

I just trashed 6 white rhino

[jimbojones5678]

They were cloned in jiffy pellets - but they were thrown under the lights pretty quickly - about the 10th day

 

never had a drama in the past though???

 

Jimbo

[Frazz]

no fungal gnat lavae attacking the roots jimbo ?

 

hmmm just a thought

[jimbojones5678]

How do I tell? What do they look like?

 

Jimbo

[Frazz]

hehe good Q ... iits pretty hard to see them but their parents are small black flying insects, they lay the lavae in warm moist locations , the lavae gnaw on the tender rootlets and the clone/plant suffers ... you will see just the odd one fly away when medium is disturbed as a rule ... if there is no insects present then ya probably havent got 'em

 

[Chronmasta]

Hey mate,

What Frazzle says is usually the cause but it can be caused by the pete pellet/rock wool staying too wet in the first fortnight

Ive just had the same problem, though mine was a combination of gnats and over watering.

 

Ive still got the infected plants....i ripped off the slimy roots and then blasted off 60% ofthe rock wool under the tape then let em dry out until they wilted and the gnats are gone....though i wouldn`t recommend doing that ......and now that they`re gone and the cube has dried out there`s new fresh roots forming

 

 

Hope ya get it sorted

 

 

 

 

 

Chron

Edited June 8, 2009 by Chronmasta

[smokinjoe]

Hey mate,

What Frazzle says is usually the cause but it can be caused by the pete pellet/rock wool staying too wet in the first fortnight

Ive just had the same problem, though mine was a combination of gnats and over watering.

 

Ive still got the infected plants....i ripped off the slimy roots and then blasted off 60% ofthe rock wool under the tape then let em dry out until they wilted and the gnats are gone....though i wouldn`t recommend doing that ......and now that they`re gone and the cube has dried out there`s new fresh roots forming

 

 

Hope ya get it sorted

 

Chron

 

Let em dry out and water with a mild milton solution to kill of any resident nasties.

[Cyclops]

The problem is most likely cold roots between watering, you have to find a way of keeping the temperature around the roots constant at all times.

 

90% of problems are root temperature related, either too hot or too cold.

[Radic]

flush

big time

do you know how to do a flush?????

details should be included in you plan

then dowit now

 

imho

your plants are suffering form too much love bro

cut back the supz

stick to your plan

each bottle of hydro nutrienta has a detailed plan printed on it somewhere

follow the directions to the letter

that plan is designed to deliver high yields for most plants

stick to it

 

they will take a while to recover

i would trash em and start with fresh clones

but if thats not an option for you

then

prepair for the long hall

 

the room temp is cool at 20C

 

let it go to 24c

 

but that is not the cause

 

ph is between 5.6 and 6.3

 

5.9 to 6.8 is better

as soon as you notice a drop below 6ph

fix it

 

thats is not the cause either

 

your not in a dodgy grow tent are you????????

 

if it is root rot

which i dout

because the drainage looks fine

 

Feeding times are 3mins every 3 hrs

 

is that nuff?????????

what are others doing with a drip system?????

i think thats a bitt low

i could be wrong

but lets see what others are doing here

 

what does it say on your plan for drip system feeding times?????????

 

get on to dat flush

irey guidance