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12-24-2021, 11:37 AM
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Administrator
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Join Date: Feb 2011
Zone: 6a
Location: Kansas
Posts: 5,224
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Well, good golly Bill. Zero-tol. Who knew? Never heard of it. Super interesting... I read up on it on Arbico website. Gotta have some by spring. I learned something new today.
It makes perfect sense to choose something specifically designed for plant use, as opposed to random stuff out of the pantry. When one has more than a few plants, some super hard or impossible to replace, it sure makes even more sense. Gracias for your comment.
---------- Post added at 09:37 AM ---------- Previous post was at 09:33 AM ----------
PS An interesting aside about know what you're using and why. I've used isopropyl alcohol for years on plants. Ran out a ways back, and daughter was coming to town and brought me some from her clinic. I got a bit of damage on a couple of plants I used it on, and zero difference on a couple others. Said to myself, huh, that's weird. Read the label and it was medical grade 99%. Frankly I hadn't given it a thought. Yup, double-checking never hurts.
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Caveat: Everything suggested is based on my environment and culture. Please adjust accordingly.
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12-24-2021, 06:00 PM
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Senior Member
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Join Date: Dec 2018
Location: Australia, North Queensland
Posts: 5,214
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Quote:
Originally Posted by Ray
I used their Zero-tol product in my greenhouse for years with no issues.
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Ray ....... is that H2O2 ? And you used it for media drench with orchid roots within it? I tried root spray at one stage ..... for trial. No plant deaths. But noticed setback of growth rate. As in a relatively long inactive period before growing occurs. Not the same observed pattern as when no H2O2 was applied ...... as in 3% concentration.
Last edited by SouthPark; 12-25-2021 at 03:18 AM..
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12-24-2021, 09:36 PM
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Senior Member
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Join Date: Dec 2015
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Location: Florida’s Forgotten Coast
Posts: 372
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Just remember that Hydrogen Peroxide is a weak Bacteria-cide used to treat only bacteria infections (before antibiotics became common). Using it for other purposes, would be a waste of it.
And I do remember having butter put on burns as a child. Did not help with the pain but did make you smell like popcorn.
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12-25-2021, 10:17 AM
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Senior Member
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Join Date: May 2005
Location: Oak Island NC
Posts: 15,204
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Quote:
Originally Posted by SouthPark
Ray ....... is that H2O2 ? And you used it for media drench with orchid roots within it? I tried root spray at one stage ..... for trial. No plant deaths. But noticed setback of growth rate. As in a relatively long inactive period before growing occurs. Not the same observed pattern as when no H2O2 was applied ...... as in 3% concentration.
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Zer-tol is a general disinfectant, effective on bacteria and fungi. I don’t recall the final, as-applied concentration specifically, but I seem to recall it being on the order of a third of a percent or something - well below the 3% in OTC stuff.
Somewhere, I have the remains of a very old jug of the concentrate, and it’s about 20%, yet being stabilized with the peracetic acid, it’s still active. I do know that at that concentration, it’ll attack the skin if it spills on you.
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12-25-2021, 01:52 PM
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Senior Member
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Join Date: Dec 2018
Location: Australia, North Queensland
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Quote:
Originally Posted by Ray
Zer-tol is a general disinfectant, effective on bacteria and fungi. I don’t recall the final, as-applied concentration specifically, but I seem to recall it being on the order of a third of a percent or something - well below the 3% in OTC stuff.
Somewhere, I have the remains of a very old jug of the concentrate, and it’s about 20%, yet being stabilized with the peracetic acid, it’s still active. I do know that at that concentration, it’ll attack the skin if it spills on you.
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Thanks for adding those details Ray. Much appreciated.
Did you use it for benches only? Or the one-third percent mix was poured into media (with orchid roots within the media)?
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12-25-2021, 05:27 PM
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Senior Member
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Join Date: May 2005
Location: Oak Island NC
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Quote:
Originally Posted by SouthPark
Thanks for adding those details Ray. Much appreciated.
Did you use it for benches only? Or the one-third percent mix was poured into media (with orchid roots within the media)?
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No, the product was intended for plant contact.
The stronger versions were for disinfecting the area, including algae prevention.
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12-25-2021, 06:51 PM
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Thanks Ray.
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12-25-2021, 11:59 PM
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I actually heard the advice here but never tried it. I heard about using Cinnamon on the roots (possibly here) and tried that and killed the roots of a Cattleya...was not happy (many years ago). Grr.
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12-26-2021, 09:38 AM
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Senior Member
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Join Date: May 2005
Location: Oak Island NC
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Quote:
Originally Posted by Leafmite
I actually heard the advice here but never tried it. I heard about using Cinnamon on the roots (possibly here) and tried that and killed the roots of a Cattleya...was not happy (many years ago). Grr.
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Very early on, I was a big proponent of the use of cinnamon, but always stressed that it should never be used on roots.
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