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Thread: White Stuff on (Unused) Orchid Bark [PICS]

  1. #9
    Let's positive thinking! seedjar's Avatar
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    Fungi are very diverse and most have fairly particular diets. If the mold is growing on long-dead bark, it probably doesn't pose much of a threat to not-dead plants that don't have bark. Most orchid bark I get has little traces of fungus on some of the pieces. Are you familiar with mycorrhizae? Some molds are actually good to have in your media.
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    rattler's Avatar
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    Quote Originally Posted by Exo View Post
    You could still use it...but it will break down faster than usual, so it is up to you.
    not enough to notice......if it doesnt show up in the orchid bark you use that means its already worked its way through.....if your gonna use organics for moist soils there are gonna be fungi, no way around it.....you can try in prevent it but after several years of building high humidity/low air circulation terrariums ive found it best just to leave it and run its course, it disappears faster than trying to fight it cause its gonna keep coming back till all the food is gone anyway....best to let it eat it now than trying to keep kicking it away from the table.....
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    Quote Originally Posted by seedjar View Post
    Are you familiar with mycorrhizae? Some molds are actually good to have in your media.
    ~Joe
    Thanks to you and wikipedia, I am now. I guess I'll just move forward with this orchid bark. But one of my reasons for repotting was fungus on the soil surface of my nep. Maybe that's not a problem.
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    Carnivorous plant enthusiast vraev's Avatar
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    Yeah! I have seen this many times on the bark I use. It is always damp when I get t because the greenhouse they stock this places then in the orchid area and the bags get misted with the orchids themselves. Never had an issue with it.

  5. #13
    Not Growing Up! GrowinOld's Avatar
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    I have had this on orchid bark from time to time, and it was never an issue.
    The "fungus" looks to be a type of mushroom mycelium , although I never had enough of it growing on orchid bark to have any mushrooms produced in the pots. I have however, seen others have small mushrooms growing in their orchid pots, especially some orchid nurseries and in the pots that were exposed to a lot of moisture.
    Unless it is all over, I wouldn't worry too much about it causing any problems.

    As a side experiment, you might try taking it and keeping it moist without too much light, and see if you can get it to fruit (produce mushrooms). It would be interesting to see what type are produced.
    Nice pictures of the mycelium!
    Experience is the best teacher. At least it used to be.
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    http://www.terraforums.com/forums/sh...d.php?t=113866

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