sterile hydroponics thread

[sunset limited]

this much i know though—no sub-lethal dose of h2o2 or bleach is going to hold your plants back as much as root disease.

Hi Sunset limited,
Thanks for the input my friend. That's only the quote of the week!
I'm beginning to see the light. Ok, so I won't put bleach in my res. However H2o2 is clearly not the same thing and as many of you have stated it benefits the plant by giving it more oxygen.
As I said in my previous post - my head said dead & I should have listened to my head! In spite of all my efforts, the plants look like shit again today & I know the root rot is back with a vengeance. Its just kicked the shit out of any & all the bennies I've thrown at it - just as you predicted!
Have to save the 7 that are left or I'm fucked!
So, back to the clean-down & sterilization and on with a DEAD res to hopefully some kind of harvest! If I had been running a dead res with constant top ups of H2o2, I probably would never have suffered from the rot in the first place! You live & learn.
Thanks for the concerns & helpfull feedback people.
Stay safe

dood. you've already figure out that bennies can't fix sick plants. neither though is any amount of bleach or peroxide or UV sterilization is going to reverse root rot once you've got it.

if you want to save the plants you've got now, you're going to need chemicals. i recommend ridomil gold SL.

hope this helps. happy gardening.

 

[Iffy]

Hi Sunset limited,
I'd love to get my hands on some Ridomil Gold here in the uk. Its available on Ebay but at over £135 for a pint its a bit beyond me at the mo. Just have to crack on with the H2o2 & try to get them through it. I'm foliar feeding them at night, as they're not taking anything via the roots at the mo. Fingers crossed.
Thanks again.
Stay safe

 

[sunset limited]

the shit ain't cheap but it does the trick.
let me know how the h2o2 works out.

 

[Harry Gypsna]

Hi Sunset limited,
I'd love to get my hands on some Ridomil Gold here in the uk. Its available on Ebay but at over £135 for a pint its a bit beyond me at the mo. Just have to crack on with the H2o2 & try to get them through it. I'm foliar feeding them at night, as they're not taking anything via the roots at the mo. Fingers crossed.
Thanks again.
Stay safe

Iffy, have a look for some "Microbial" It is Quaternary Ammonium, which is what the big pro greenhouse salad growers use. It is the industry standard for sterlisation in horticulture.
I think grohell sell it. It can be used for all sorts, a tiny bit in a little spray bottle, neat, will kill algae on cubes etc, and it can apparently be used neat to kill budrot.

That slime mold is a real twat to get rid of. I got it in an aerocloner and when I saw the shit on my roots, I tried rinsing them under the tap-- no dice, the slime actually hangs on harder when it has a flow trying to dislodge it(according to an article I read). I shitcanned the cloner in the end.

 

[HOVAH2.0]

I wasnt sold on the organic B S, and I believe everything should be super clean, particuarally with DWC.

General Hydroponics Nuke forever for me....... i dont like dealing with any kind of shit regardless of what asshole it comes out of!

 

[sunset limited]

Iffy, have a look for some "Microbial" It is Quaternary Ammonium, which is what the big pro greenhouse salad growers use. It is the industry standard for sterlisation in horticulture.
I think grohell sell it. It can be used for all sorts, a tiny bit in a little spray bottle, neat, will kill algae on cubes etc, and it can apparently be used neat to kill budrot.

That slime mold is a real twat to get rid of. I got it in an aerocloner and when I saw the shit on my roots, I tried rinsing them under the tap-- no dice, the slime actually hangs on harder when it has a flow trying to dislodge it(according to an article I read). I shitcanned the cloner in the end.

oh yeah. physan. great shit. almost forgot.

if you bubble your rez, make sure the quat is evenly distributed throughout your system or it'll bubble up like dish soap in a washing machine. also, you're going to get a bunch of baby poo / pond scum looking shit in there. that will need cleaned out too. the stuff petrifies on the side of the container if you leave it there for more than a few hours i've found.

i use it at 1ml / 10 gallons, one day before nute changes. i've left it running in my rez at concentrations as high as .5 ml / gal and the plants don't mind it a bit. the label says it's not for use on food crops (at least in the US it does) and it's got a very strong pungent chemical odor (like hospital cleaner) so i'd try not to use it in late bloom.

still, that pythium is some persistent shit. hate to say it, but i'll venture a guess and say that if what you've got is like what i've had, quat ain't the immediate fix.

 

[doneit]

The physan is a BAD idea to leave in the rez. I did the 1ml per 10 gal and it destroyed the roots in 6 days.
If you use it to kill off any pathogens in your rez, be sure to dump it with in a few hours and flush thoroughly to get it out of your medium.

 

[sunset limited]

never left it in that long. good to know. thanks.

 

[Iffy]

Dead Res

Dead Res

Hi folks,
Well I don't have any slime or scum of any kind. My res is as clear as a bell, some brown sediment in the bottom now from the roots. If I had continued with the first treatment of H2o2 & kept a dead res, I would have 7 healthy plants now. However, I made the wrong choice at a vital time. I really wanted the 'bennie' approach to work but in the cold light of day, it didn't. The condition was probably too entrenched to expect the bennies to successfully fight off the rot, even though I've read that people have managed to do it.
Anyway, the consequences of that decision is that the rot came galloping back with a vengeance. From the 7 left, one looks past all help & the others are struggling. Back on H2o2 treatment but I fear the worst for this crop, I'm gonna try and nurse them through a couple of weeks but I'm not sure they will respond to the H2o2 this time. I think I might as well face the fact of a total loss & plan accordingly.
It's shit but it is what it is - education.
Stay safe people

 

[sunset limited]

i've been finding that there is a very fine line between sterilizing with H2O2 and doing worse things to your roots than the pythium would do. keeping things xtra clean these days and have dialed it back to chloramine with new nutes, one dose of H2O2@2ml/gal halfway between changes, and that UV pond sterilizer all the damn time. shit works. blee' dat.

 

[doneit]

I have found that the disease is a fungus that gets air born once its established, its not actually in the res anymore, its infected in the plant material and will come back no matter what, after fighting it for 2 yrs, i had to close shop 100% and move!

 

[Iffy]

I have found that the disease is a fungus that gets air born once its established, its not actually in the res anymore, its infected in the plant material and will come back no matter what, after fighting it for 2 yrs, i had to close shop 100% and move!

Fuck! Don't like the sound of that!! You sure it wasn't a poltergeist??

 

[sunset limited]

^^^BAHAHAHA!

 

[doneit]

I wish it was poltergeist!
I tried everything in the book and then some, new equipment, cuts etc... even left the grow empty for a couple weeks and fumigated and bleached, no matter what it comes back, i had minimal success at times fending it off for brief periods of time but crops were shit in the end.
I also found that the spores will travel with you to other spots.
I sure as hell pray you or anyone else does not get this fungus, its brutal to say the least!

it was originally introduced to our grows from some cuts a local idiot gave to us, it was all over with in 3 months!

Penn state U analyzed it and said it is a fusarium fungus and that i was fucked basically.

Hope you get your grow sorted, if you see signs of it coming back after you redo everything you may have to wrap it up and move like we did, dont waste the time and money like we did, just cut your losses and move... FAR AWAY! lol

 

[sunset limited]

i've found that mycobutanil is effective against systemic fusarium.
of course, so is TC.
i run dead rez to keep me free of pyth tho.
still working like a charm too.

 

[redlaser]

oh yeah. physan. great shit. almost forgot.

if you bubble your rez, make sure the quat is evenly distributed throughout your system or it'll bubble up like dish soap in a washing machine. also, you're going to get a bunch of baby poo / pond scum looking shit in there. that will need cleaned out too. the stuff petrifies on the side of the container if you leave it there for more than a few hours i've found.

i use it at 1ml / 10 gallons, one day before nute changes. i've left it running in my rez at concentrations as high as .5 ml / gal and the plants don't mind it a bit. the label says it's not for use on food crops (at least in the US it does) and it's got a very strong pungent chemical odor (like hospital cleaner) so i'd try not to use it in late bloom.

still, that pythium is some persistent shit. hate to say it, but i'll venture a guess and say that if what you've got is like what i've had, quat ain't the immediate fix.

Physan is a great product, is there anything else that states it will kill viruses? Not that it's the biggest issue with cannabis. Physan is an interesting product as far as its labeling and listed uses as well. It's not listed for food crops but if you look on their website in the hydro section it actually states "Physan 20 leaves no harmful residue if foliage is dried and smoked". Now that seems a little contradictory when its not listed for food crops at all yet it's cool to smoke sprayed leaves. If I'm not mistaken physan is the same active ingredient in a lot of anti-microbial hand sanitizers so you would think there is some established safety with skin contact at least.

 

[smog]

hey doneit or anybody here can you check my thread i just made i think i have a systemic fusarium from my house or tap water in my coco plants, but the plants look ok but yeild less i think , i also tried supersoil fed worm tea and the roots where very thin and brownish looking after harvest, for a few years i did dwc and vegged with ebb nflow,lucas with tap water, never had a issue, i remember white ropey roots but i did have a nice indica cut bc purps back then that was lost now, i tried dwc again the roots looked weak and broke apart easy ,and brown, no slime the plant finished and didnt die, didnt smoke like it should have, the roots dont have a smell either

 

[smog]

also whats florasheild is it any good?
i read dm zone will be discontinued ?
also theres a new product for cleaning thats called ona bleech it comes in a and b and is supposed to not give off fumes like bleach! which irritates my face makeing it red, should i use peroxide or physan instead for cleaning my pots or buy this stuff

 

[clownbow]

hey doneit or anybody here can you check my thread i just made i think i have a systemic fusarium from my house or tap water in my coco plants, but the plants look ok but yeild less i think , i also tried supersoil fed worm tea and the roots where very thin and brownish looking after harvest, for a few years i did dwc and vegged with ebb nflow,lucas with tap water, never had a issue, i remember white ropey roots but i did have a nice indica cut bc purps back then that was lost now, i tried dwc again the roots looked weak and broke apart easy ,and brown, no slime the plant finished and didnt die, didnt smoke like it should have, the roots dont have a smell either

my problem is exactly the same as the one you described no slime but Brown dying rootswith no bad smell I don't even really have any pH fluctuations either....this next round I'm going to try some Organocide plant doctor with maybe a sterile environment my plants are growing and never die but I seem to be getting really small yields out of plants that I know can yield bigger .... and then in another set up I'm going to try some ...Colloidal shield....it's a Colloidal silver that is supposed to smother all pathogens in the water along with another systemic fungicide technically that seems like it should fix everything always have to remember to kill it systemically or else the contaminated plants will just put it back into water ...I'm also going to try and start with new plants that should not be infected

 

[smog]

was thinking about useing distilled water! you could crank a water heater up to pasturise the water and kill pith,, the dutch zone seems to be helping, and for my organic im boiling the water its only a few plants and the roots look good, nocked one over it fell out and there was thick white roots comeing from the rooter, will see if they stay white