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Shop: Original Sensible Seeds Bulk Cannabis Seeds   North Spore Injection Grain Bag, North Spore Mushroom Grow Kits & Cultivation Supplies

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Offlinedaytripper31
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Registered: 06/28/06
Posts: 14
Loc: the zoo, MI
Last seen: 16 years, 10 months
black grains on mycelium
    #5810814 - 07/01/06 08:57 PM (17 years, 6 months ago)

my jars are colonizing great but near the point of injection, there are little black grains that appear in/on the mycelium. i've seen the same kind of thing in other jars and i'm pretty confident that it isn't vermiculite. the specs haven't been spreading so i'm not sure if it is contamination or not. if you've heard of this or know if it's ok to keep going, i would greatly appreciate the help...


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Invisibleliamtheloser
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Registered: 06/07/06
Posts: 1,453
Re: black grains on mycelium [Re: daytripper31]
    #5812043 - 07/02/06 10:24 AM (17 years, 6 months ago)

could it be this?

Pin Molds – Rhizopus spp.

A very fast growing fungus. Once it sporulates, it forms many tall aerial hyphae adorned with black-headed pins. It grows on readily available carbohydrates. Along with Aspergillus and Penicillium, species of this genus are the primary contaminants of grain spawn. It is also very common on straw.



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Offlinedaytripper31
midnight toker
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Registered: 06/28/06
Posts: 14
Loc: the zoo, MI
Last seen: 16 years, 10 months
Re: black grains on mycelium [Re: liamtheloser]
    #5813505 - 07/02/06 08:29 PM (17 years, 6 months ago)

do you know if this mold only grows when in a terriarium? my jars have been going for a week and a half and these grains have been there since the mycelium first appeared with no new spots, growth, or movement...


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OfflineSmallFry
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Registered: 07/01/06
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Last seen: 16 years, 10 months
Re: black grains on mycelium [Re: daytripper31]
    #5815069 - 07/03/06 08:09 AM (17 years, 6 months ago)

I have the same problem with some of my jars. Small black spot at the inoculation site that doesn't spread or grow...but doesn't quite look like vermiculite. I'm no pro, but I don't think it's Rhizopus spp, it doesn't look like it at all.


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