goingrey
Well-known member
Just thinking because mudballs said it can be on surfaces, like say pm, maybe it could be treated the same way..
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PYTHIUM
- Thread starter Desert Dan
- Start date
eastcoastjoe
Well-known member
You showing any symptoms at all ? I’ve never used this but if I were in you’re shoes, I’d consider trying this before I made any major decisions.
Someone I respect a lot has made some pretty bold claims about how effective it is against killing certain diseases.
RootShield® WP
Before you plant, apply OMRI listed RootShield WP (Wettable Powder) to protect plant roots from common soil-borne pathogens. RootShield WP is a certified organic soil inoculant that uses the highly-effective hybrid fungus Trichoderma harzianum , Rifai strain KRL-AG2, to kill Pythium...
www.arbico-organics.com
I’ll try to snap some side by side pics of root zones tomorrow… I just started implementing some recharge, which has trichoderma and mycos.You showing any symptoms at all ? I’ve never used this but if I were in you’re shoes, I’d consider trying this before I made any major decisions.
Someone I respect a lot has made some pretty bold claims about how effective it is against killing certain diseases.
RootShield® WP
Before you plant, apply OMRI listed RootShield WP (Wettable Powder) to protect plant roots from common soil-borne pathogens. RootShield WP is a certified organic soil inoculant that uses the highly-effective hybrid fungus Trichoderma harzianum , Rifai strain KRL-AG2, to kill Pythium...www.arbico-organics.com
-DD
eastcoastjoe
Well-known member
Note the concentration differences. If my math is correct, root shield has 100,000,000 Cfu per gram of trichoderma vs 250,000. Huge difference !!
Drop That Sound
Well-known member
Air layering is the most ancient master cloning technique to exist. The most successful way to propagate plants, hands down. For 1000s of years or more, up until they taught you that taking tiny cuttings is somehow better, so you buy way more products and gear, lol.. I got a thread on it here on the mag somewhere, but would definitely need to update it, as I have experimenting with all new state of the art methods, like testing out hydroponic AL pods ( including DWC and aero misters, and even have a much simpler gravity or pump drip feed IV bag system to auto water them if needed). Awe yeah!
Anyway, when you girdle the stem it cuts off most the supply pathways back down to the roots, so afaik its harder for the pathogens to spread upwards and cause branches to wilt and die off. You cut away part of main the connection to the roots, and so how can osmosis take place to suck the pathogen up further? It can't, right?.
So, You provide new fresh medium via the layer, which isn't all infected like down below in the roots/container... which probably did come from gnats btw, or just overall humid conditions.. so you best take care of them before they keep spreading it everywhere else too, including crawling into the new air layer mediums you just wrapped up above!
Even though the branch is still connected to the mom via the inner stem with an infected root stock, the clone will still have a better chance than without. The mother plant can still basically keep nurturing it along in other ways, even with advanced root rot.
I guess the main point would be to salvage most of the mother plants that are infected back into a new larger mother, without taking a few cuts and throwing it all out. You should easily be able to outgrow and wipe out the pathogens as long as you get rid of the main root stock and infected medium down below. I would get rid of all the medium on all the plants that may have gnats or whetever, and take the biggest clones possible to dunk in a tub of calhypo or bleach water and start over with. even a fan can blow some coco from one pot to the other, or leaves that gnats crawled on can fall down into the other trays, etc. Thats the way I see it anyway.
You would think its inevitable to pickup pythium at some point, especially keeping a plant around for long periods of time in some kind of medium like that. Honestly, If I had some test pop up but only on a few mothers, and not on the new clones from it that were given a chance to grow for a bit, i wouldn't worry much unless it was obviously killing off plants. How do you know the test isn't showing a false positive anyway, or that the lab didn't clean their own tools? Isn't there e threshold for the amount of pythium present anyway? and always some tiny amount would show up?
Anyway, when you girdle the stem it cuts off most the supply pathways back down to the roots, so afaik its harder for the pathogens to spread upwards and cause branches to wilt and die off. You cut away part of main the connection to the roots, and so how can osmosis take place to suck the pathogen up further? It can't, right?.
So, You provide new fresh medium via the layer, which isn't all infected like down below in the roots/container... which probably did come from gnats btw, or just overall humid conditions.. so you best take care of them before they keep spreading it everywhere else too, including crawling into the new air layer mediums you just wrapped up above!
Even though the branch is still connected to the mom via the inner stem with an infected root stock, the clone will still have a better chance than without. The mother plant can still basically keep nurturing it along in other ways, even with advanced root rot.
I guess the main point would be to salvage most of the mother plants that are infected back into a new larger mother, without taking a few cuts and throwing it all out. You should easily be able to outgrow and wipe out the pathogens as long as you get rid of the main root stock and infected medium down below. I would get rid of all the medium on all the plants that may have gnats or whetever, and take the biggest clones possible to dunk in a tub of calhypo or bleach water and start over with. even a fan can blow some coco from one pot to the other, or leaves that gnats crawled on can fall down into the other trays, etc. Thats the way I see it anyway.
You would think its inevitable to pickup pythium at some point, especially keeping a plant around for long periods of time in some kind of medium like that. Honestly, If I had some test pop up but only on a few mothers, and not on the new clones from it that were given a chance to grow for a bit, i wouldn't worry much unless it was obviously killing off plants. How do you know the test isn't showing a false positive anyway, or that the lab didn't clean their own tools? Isn't there e threshold for the amount of pythium present anyway? and always some tiny amount would show up?
Ca++
Well-known member
I just picked up 100g of food safe calcium chloride. It's going to be around 65% chlorine, 35% calcium. I put just 15g into 1 liter of water, to make up my stock bottle. I use this at just 1ml per 10 liters. Which should give 1ppm chlorine. Pools run between 1-3ppm. I used some test strips, they couldn't even see the stock. So I'm left guessing. However, the tank is a lot clearer. I had thought seeing the bottom a little hard due to reflections, but no, I had some clouds, along with a surface slick I had been skimming.
Might be nice to get a confirmation on the mixing, and I will let you know if my plants die. They say 1ppm can come from the tap though, and others have suggested 2.5ppm would kill our plants.
It's important to consider if the tap provided 1ppm, before sticking in another. I waited a couple of days, until my new tank was looking ready. Pity about the test strips though.
If 100g will treat 60,000 Liters, you might want to bottle some for friends.
If you think you are that friend, I can free up 15g and post it.
Might be nice to get a confirmation on the mixing, and I will let you know if my plants die. They say 1ppm can come from the tap though, and others have suggested 2.5ppm would kill our plants.
It's important to consider if the tap provided 1ppm, before sticking in another. I waited a couple of days, until my new tank was looking ready. Pity about the test strips though.
If 100g will treat 60,000 Liters, you might want to bottle some for friends.
If you think you are that friend, I can free up 15g and post it.
eastcoastjoe
Well-known member
I can say from experience, that has not been true for me. I use to use 0.2 ml / gal sodium hypochlorite in all of my irrigation water and plants thrived. According to my test strips, I was in the 3 ppm range.
eastcoastjoe
Well-known member
Do you have pythium ?
Ca++
Well-known member
No. I'm just getting the recipe wrote down somewhere. Alone it wouldn't be a cure, but is an important part of a strong defense. Only with aero-cloners might it be the solitary answer.
Do you have any advice regarding it's reapplication, in say DWC/NFT/F&D type situations. I realise a dirty system will see it vanish quickly, but even if clean, is it's disappearance still related to the 24h we used to stand water for? I realise you were topping up, and every instance is different. I'm just looking for any examples you might give
eastcoastjoe
Well-known member
No. I'm just getting the recipe wrote down somewhere. Alone it wouldn't be a cure, but is an important part of a strong defense. Only with aero-cloners might it be the solitary answer.
Do you have any advice regarding it's reapplication, in say DWC/NFT/F&D type situations. I realise a dirty system will see it vanish quickly, but even if clean, is it's disappearance still related to the 24h we used to stand water for? I realise you were topping up, and every instance is different. I'm just looking for any examples you might give
Unfortunately i do not. I use a soilless media so I can’t really speak on how it will affect you’re situation
treesandbuds
New member
Interesting ….
https://www.startmotionmedia.com/pythium/
https://www.startmotionmedia.com/st...-cannabis-to-customers-gov-newsom-to-respond/
"A rapidly escalating public health crisis tied to widespread fungal contamination of marijuana products sold in California since December 2022, with grave implications for consumer health. This (potentially deadly) contamination stems from an outbreak in Fall 2022, of two novel fungi, Pythium and Fusarium (among others), and a novel vector virus Hop Latent Viroid, in combination with unrestricted gene depletion caused by industrial plant cloning practices (bioengineering), all of which are contributing to the cannabis plant epidemic commonly referred to as “Root rot” and “Damping off,” which has now spread unilaterally to all commercial marijuana facilities across the United States, over the last 2 years. The proliferation of this novel fungus in commercial cannabis facilities has resulted in numerous documented cases of severe human fungal illness, including fatalities, and it should be a top-line public health and safety concern"
Sick parties who lost health and life due to the Pythium Fusarium overgrowth are encouraged to reach out to Wilshire Law and establish as lead plaintiff, in an upcoming lawsuit to the state of California Cannabis Control Board, and Collective Marijuana Brands and Dispensaries, for selling contaminated and unsanitary marijuana since fall 2022, without warning to California consumers, containing novel fungus which causes unknown effects to human health. More info above ...
