Plant just came off at soil line?

gazza89

Active Member
I'm a bit upset. one of my girls came completely off, I only barely touched her as i was watering and she fell over.

It looks like the base of the stem was weak or even eaten slightly? but i can't see any pests on the plant or coco? i'm so confused and hope it won't spread to my other plants... She was a fair bit smaller than my other plants so possibly she stopped growing because of this, but her leaves looked decent.

Any help would be appreciated!
 

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gazza89

Active Member
At first i was watering my coco like every 3 - 4 days waiting for the top to get dry then re watering, the past couple of days i now water every day because I was told to in coco as it's basically a hydro medium.
 

Tim1987

Well-Known Member
Does the plant have a mushy "collar" where it kinked, and fell?
If it is collar rot. Your environment is out of whack somewhere. Root zone temps/ph, ambient temps, humidity etc. Should all be things we check.
It's a pathogen. So it could of come from anywhere, anything and anytime. It's about keeping the right environment. So it's extremely hard for disease and pests to thrive in the first place.
I realise letting coir dry right out isn't ideal. Also that it holds a hell of a lot of air. But the most common cause of collar rot in soil, is constantly wet soil. Especially the surface soil.

For coir I'd be checking my room temperature, pot temperature, and humidity. Sounds like the surface isn't drying fast enough.
It only takes a few hours for the first inch to start going dry, for mine. Next morning you can see the colour change.

If your temps and humidity check out. Definitely consider feeding / watering less often.

Wiki on collar rot.
https://en.m.wikipedia.org/wiki/Collar_rot
 

gazza89

Active Member
Not particularly the stem is still fairly green and hardly looks rotted at all, it seemed pretty stiff, PH is between 5.8-6.2, humidity ranges from 40-70%, temperatures are roughly 25 decrees centigrade. I am unsure on root zone temps.

But yeah the surface is only beggining to dry the next day, takes about 3 days for the top to look mostly dry. should i stop watering every day now and go back to every few days?
 

Tim1987

Well-Known Member
Not particularly the stem is still fairly green and hardly looks rotted at all, it seemed pretty stiff, PH is between 5.8-6.2, humidity ranges from 40-70%, temperatures are roughly 25 decrees centigrade. I am unsure on root zone temps.

But yeah the surface is only beggining to dry the next day, takes about 3 days for the top to look mostly dry. should i stop watering every day now and go back to every few days?
Yeah I would TBH.
I'd keep the problem child away from the others too.
Whatever it is. It's more than likely infectious, and will spread.
Is the pot in its own waste pan?
Does it's waste come into contact with your other plants at all?
I wouldn't muck around TBH.
Plants falling over like that, is never, ever good.

Have you checked the waste of your coir?
Most pathogens like an acidic environment.
What's the ph of your waste? Have you been checking?
Was it low, by chance?
 

gazza89

Active Member
Yeah i've gave her a proper burial and taken the pot out of the tent, yeah they are all on separate trays.
only tested runoff twice , but both times it was almost the same as the water i put into it, will check next feed.

hoping it was just a one off, worried about my grow now.
 

gazza89

Active Member
Wow actually , remembered i didn't collect the runoff from the dead plant's pot so tested it and my ph is 6.7! i'm guessing that's not helping at all, would that cause the plant to die like that?
 

Tim1987

Well-Known Member
Yeah i've gave her a proper burial and taken the pot out of the tent, yeah they are all on separate trays.
only tested runoff twice , but both times it was almost the same as the water i put into it, will check next feed.

hoping it was just a one off, worried about my grow now.
You should be fine mate. Just dry them out a little. Then test the ph waste next feed. It'd be worth checking ec at the same time too.

Just jump on to it straight away, like you already have, and sure it'll be fine.

Good luck op.
 

gazza89

Active Member
You should be fine mate. Just dry them out a little. Then test the ph waste next feed. It'd be worth checking ec at the same time too.

Just jump on to it straight away, like you already have, and sure it'll be fine.

Good luck op.
Don't have an EC meter sadly as i've run out of funds, but yeah i'll dial back the watering and keep testing the ph of the runoff.
just tested that plants runoff and it was 6.7 , something else to look into.
 

Tim1987

Well-Known Member
Wow actually , remembered i didn't collect the runoff from the dead plant's pot so tested it and my ph is 6.7! i'm guessing that's not helping at all, would that cause the plant to die like that?
Probably not TBH. It's generally acidity.

It's a good sign. It most like didn't come with your coir, and has floated in somehow. Don't worry.

But yeah aim to get it around 6ish.
 

Tim1987

Well-Known Member
I had a problem once, with seedlings damping off.
Tried everything. It just kept coming back. I was tearing my hair out.
Turned out the crap was growing in my watering can, and each time I watered, I was infecting every single plant.

New watering can. BAM, problem was solved.
It can be the most subtle thing, with disease.
 

Tim1987

Well-Known Member
Don't have an EC meter sadly as i've run out of funds, but yeah i'll dial back the watering and keep testing the ph of the runoff.
just tested that plants runoff and it was 6.7 , something else to look into.
I'd honestly get a meter. They're invaluable for coir.
I just use a stick. Like a truncheon. They're cheap, and last a long time. Also makes a great mixing stick.
:bigjoint:
 

gazza89

Active Member
I'd honestly get a meter. They're invaluable for coir.
I just use a stick. Like a truncheon. They're cheap, and last a long time. Also makes a great mixing stick.
:bigjoint:
Yeah there is a cheap one on ebay for like just over £20 wonder if it would be any good.
and yeah i do leave my water for a day in open buckets for the chlorine to dissipate, then water with a jug, but i clean usually after every watering.
 

Tim1987

Well-Known Member
Yeah there is a cheap one on ebay for like just over £20 wonder if it would be any good.
and yeah i do leave my water for a day in open buckets for the chlorine to dissipate, then water with a jug, but i clean usually after every watering.
Yeah go for it.
Mines a cheap, Chinese knock off. That works just as well.
 

PopTop

Well-Known Member
seems funny the stems look as if they were chewed off like a beaver does to a tree, I don't believe its damp off as that leaves the stem all greasy and rotten looking. I have no answer just my observation, maybe you got mice IDK but good luck
 

Tim1987

Well-Known Member
I'd say it almost certainly was.
It's trunk is very thinned at the soil line.
It's typical of collar rot too. Plant looks perfect day before. Next morning it's on its side.

Would you not agree?
It has certainly been the case for myself, in the past.

It always hit very, hard and fast.
No time for the plants to express symptoms.

Doesn't look sick...def doesn't have damping off symptoms...next time I would take some clones...g/l
 
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