Quote:
Originally Posted by Orchid126
Chlorine Bleach is what they use in swimming pools. I never heard that pool water will kill a plant. One teaspoon to a quart is not lethal, and is nothing compared to the percentage of what is used in a swimming pool.
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Chlorine bleach in moderate concentrations even in pool water is also what irritates many people's eyes. Let's not talk about plants.
People don't normally dunk their plants in pool water anyways. Water from the pool usually gets on plants when the water splashes onto them by which time, a number of chemical reactions and microbial activity factors in.
Bleach can kill cells.
Dilution is key and
concentration matters! Certain parts of a plant can be sensitive to bleach no matter what the dilution or concentration is that is considered effective for performing as an antiseptic. The kind of orchid also has to be taken into consideration too. Not all orchids will react the same way to certain treatments.
I still stand by not getting bleach on the roots. I will not budge from this statement. Particularly when I speak from my own personal blunders and not secondhand observations (speaking about myself personally here, I'm not accusing anyone of using secondhand info)!
Quote:
Originally Posted by Orchid126
Hydrogen peroxide is oxygen, after all.
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Hydrogen peroxide = H2O2
It's not oxygen.
Oxygen (O2) is a byproduct of the chemical reaction that occurs with H2O2 when it's exposed to the air. The other byproduct is H2O (water).
Hydrogen peroxide does have good antiseptic properties, however, it doesn't discriminate as to what kinds of cells it kills.
edit:Although not quite as potent as bleach, it does kill cells (I didn't dream this up, I had a botany instructor mention this to the entire class during lab as a kind of fun fact). It kind of has a very weak bleaching effect. You can try it out if you like, on your own fingers (I wouldn't do it repeatedly over an extended period of time though).
There was most likely a couple of good reasons why the nurseryman tilted his Phal while applying the hydrogen peroxide to the crown of the plant.
I did say applying H2O2 onto leaves is fine.
I, however, also recommended against it hitting the roots as much as possible.
Now if you're talking about the oxidation process being the thing that makes H2O2 an effective antiseptic, then yeah, but H2O2 is not O2.
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