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Any Fungicide Suggestions For Root Rot in Hydroponics?

Rabbi

Rabbi

Member
A little over 2 years ago I moved to a new place and have had nothing but root rot problems since then. Up to that point I had never even seen root rot in the 16 years I was growing(18 years now if you actually count the last 2 failed years).

I am currently running(or trying to I should say) RDWC but also tried low pressure aeroponics and flood and drain. All methods that I ran flawlessly for many years in my old place. But here it's been nothing but fuckery.

So far I've tried Hydroguard, Hygrozyme, Southern AG Garden Friendly Fungicide, Great White Shark, Piranha(which is the only stuff that helped a bit), bleach, h202, pool shock chlorine and different water sources(including my old one and r/o down to 0ppm).

I have started over several times so I could start with fresh plants, disinfected all equipment and completely cleaned/scrubbed the rooms with bleach and etc. End result.... Root rot every single time no matter what I do. Other than the Piranha none of those things helped even a little.

My ph is fine, I got no light leaks, water and air temps are in check and have plenty of dissolved oxygen. I have now just accepted that I've moved to a place that's just environmentally prone to root rot and the only chance I now have is with treatment. I did use the search function for "fungicide" but those threads are all pretty much for PM and Botrytis.

Does anyone have any suggestions on some fungicide that might help me? I don't care how hardcore it is, in fact at this point the more hardcore the better. Can be organic or synthetic, don't matter, whatever works.

Thx in advance for any help or suggestions. :tiphat:

Edit: This would just be for veg btw. If I can get them through veg and maybe 1-2 weeks of flower healthy they seem to stay that way for some reason.
 
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M

moose eater

Might recommend reading the applications statement on either Pre-Stop or Myco-Stop. Actinovate, too. With the 1st 2 being more broad in spectrum. Whether any of those can be used in aero-ponic or hydro I can't say, as I am in soilless mixes for decades, but they have a decent rep; especially the Pre-Stop.

I believe 2 of the 3, if not all 3, are bio-fungicides.

Searching the terms 'treating fungus problems in hydroponics with '(insert name of product)'

And, if this issue has been recurrent, showing up even when you change res, -after- effectively sterilizing your equipment between runs, then I would look at an adequate filtration system for your H2O, or perhaps a different H2O source.

When I've had any significant fungal issues in my grow area, I've also cleaned the area, cupboards, etc., with a fairly stout bleach and Borax (in hot H2O) solution.
 
Rabbi

Rabbi

Member
moose eater said:
Might recommend reading the applications statement on either Pre-Stop or Myco-Stop. Actinovate, too. With the 1st 2 being more broad in spectrum. Whether any of those can be used in aero-ponic or hydro I can't say, as I am in soilless mixes for decades, but they have a decent rep; especially the Pre-Stop.

I believe 2 of the 3, if not all 3, are bio-fungicides.

Searching the terms 'treating fungus problems in hydroponics with '(insert name of product)'

And, if this issue has been recurrent, showing up even when you change res, -after- effectively sterilizing your equipment between runs, then I would look at an adequate filtration system for your H2O, or perhaps a different H2O source.

When I've had any significant fungal issues in my grow area, I've also cleaned the area, cupboards, etc., with a fairly stout bleach and Borax (in hot H2O) solution.
Click to expand...

Thx Moose. I'll look into those.
 
Rabbi

Rabbi

Member
Just sent an email to a local "crop protection lab". Going to see if I can get the infected roots tested to figure out exactly what fungus I'm dealing with. In theory that should help me narrow things down as far as a fungicide choice. See what happens I guess.
 
S

Speed of green

Active member
damn man, 2 years is a long time.

What was your expierience with h2o2?

Oxidate 2.0 @ 1:100 is for sure going to knock down anything you have. I would drain the system and spray the roots directly every few days if the plants are small enough to access.

I grow mainly in coco, most of my root issues arrive via overwatering. Dwc is obviously different, dissolved oxygen & temp being key. Do you have access to a DO meter? Just to confirm your ppm?
 
S

SamsonsRiddle

Active member
if you're running a sterile rez, Dutch Master Gold Zone was what was suggested to me. I think they may have changed the name to Dutch Master Zone now.
 
f-e

f-e

Well-known member
Mentor
Veteran
Why stick with the most rot prone systems, and chase down fungicide. We don't even know that it's fungus related. You need a biological system of your own, to stop this problem one running riot unhindered. It could be coming in on the breeze, or be minging away under your floor coverings. You know you can't control it though. Use compost or coco, you will probably be fine, without poisoning yourself.

Pretty sure this topic is a repost, and you ignored me before.
 
Rabbi

Rabbi

Member
Speed of green said:
damn man, 2 years is a long time.

What was your expierience with h2o2?

Oxidate 2.0 @ 1:100 is for sure going to knock down anything you have. I would drain the system and spray the roots directly every few days if the plants are small enough to access.

I grow mainly in coco, most of my root issues arrive via overwatering. Dwc is obviously different, dissolved oxygen & temp being key. Do you have access to a DO meter? Just to confirm your ppm?
Click to expand...

I tried the h202. And pool shock. Didn't help.

No I don't have a DO meter. Wish I did though. However I don't think DO is the issue. A meter would still be nice to have on hand though.
 
M

moose eater

I've whipped Fusarium Wilt with Pre-Stop and with Myco-Stop, but as stated earlier, I'm in soilless mix, and you'd need to be able to access one of those items, AFTER determining whether or not they are suited to your medium.
 
Rabbi

Rabbi

Member
moose eater said:
I've whipped Fusarium Wilt with Pre-Stop and with Myco-Stop, but as stated earlier, I'm in soilless mix, and you'd need to be able to access one of those items, AFTER determining whether or not they are suited to your medium.
Click to expand...

Thanks again Moose I am actually interested in trying both of those.

I'm glad the lab determined that I have Fusarium but I've also seen many things that make me question Sclerotinia. I've actually had white mold growing on my roots along with little black pebble looking things, that looks exactly like Sclerotinia.
 
Rabbi

Rabbi

Member
f-e said:
Why stick with the most rot prone systems, and chase down fungicide. We don't even know that it's fungus related. You need a biological system of your own, to stop this problem one running riot unhindered. It could be coming in on the breeze, or be minging away under your floor coverings. You know you can't control it though. Use compost or coco, you will probably be fine, without poisoning yourself.

Pretty sure this topic is a repost, and you ignored me before.
Click to expand...

You really think switching to coco would help? I'd hate to switch from hydro but would if if i had to.

I did mention having root rot issues in another thread but don't recall ignoring you. My apologies though if it happened.
 
M

moose eater

You're quite welcome.

Pre-Stop is the better item, and is approved by the feds, but each state runs their own certification program for local distribution (in Alaska it's the Department of Environmental Conservation who 'sells' the certification to permit commercial distribution of the stuff).

I think it's Viva Grow who sells it (Pre-Stop) in a variety of volumes/weights. And I've found them to be fair and prompt, as well as (back then) offering free shipping.


You can find Viva Grow on-line.

I, however, was not in an approved state for distribution, so contacted an old acquaintance in a state that WAS approved, and had it shipped to him, after which he shipped it to me.

When I spoke with Alaska DEC about this, tipping my hand to find out where I stood with the whole ordeal, they informed me that as long as it wasn't being used commercially, and only on my own property, then it was fine to have my acquaintance in Pennsylvania send the stuff to me.

It's a bio-fungicide, as stated earlier. If I had a complaint with Pre-Stop, I'd add that, while it's very effective, and has even been compared to some chemical fungicides, in terms of effectiveness, the amount mixed per gallon of H2O is substantially greater than with Actinovate or Myco-Stop.

Also, nearly any bio-fungicide I've used has a shelf life, and is best stored in a refrigerator.

Most places selling Pre-Stop, by the way, will have a list of those states approved for commercial distribution. If your state's not on that list, and you know someone in a state that -is- on that list of approved states, then you still can probably gain access; just an extra shipping charge for what is a fairly thin (but over-sized otherwise) packet.

I went for the 100 gram packet of Per-Stop.

The Myco-Stop is nearly as good, and uses a lot less in the ratio of Myco-Stop to H2O in dilution.

Best of luck.
 
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