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OfflineEat The Rich
Stranger
Registered: 10/01/07
Posts: 23
Last seen: 15 years, 2 months
Oh no! Another Contam Question!
    #7760874 - 12/15/07 02:45 AM (16 years, 1 month ago)

I'm sure some people get tired of seeing these,
however, I always enjoy taking a peek into others' grows.
I've never experienced mycellial formation like this,
and am wondering whether I should concern it more as contam, less like myc.
Its extremely fluffy, whispy, or hairy.
It is white, however appears gray due to its incredibly thin nature atop the black casing mix.
Does that make sense?

Heres some pix,
any advice would be wonderful.
thank you thank you thank you.




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Invisibleshaggydogman
Stranger


Registered: 04/20/07
Posts: 672
Re: Oh no! Another Contam Question! [Re: Eat The Rich]
    #7760884 - 12/15/07 03:02 AM (16 years, 1 month ago)

It looks a bit suspicious to me too. I'm not sure if its myc or something else that might chuck of some green spores soon.
I'd be tempted to isolate it from the other trays as a precaution.


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Rye -- WBS | Grain LC -- G2G | Bulk -- Monotub | 50/50 -- Late Casing -- A Pinning Strategy
Disclaimer: My opinion is subject to change at short notice subject to but not limited by new information and knowledge being made available.


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InvisibleJewelessCaesar
Shroomery's Legal Department
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Folding@home Statistics
Registered: 05/26/06
Posts: 599
Loc: Petros-Joyner, TN, USA Flag
Re: Oh no! Another Contam Question! [Re: Eat The Rich]
    #7760925 - 12/15/07 03:51 AM (16 years, 1 month ago)

Looks like cobweb to me, try spraying it with a diluted h202(peroxide and water). I'm not sure of the correct formula.. I just add about 3 % of whatever sprayer I'm using but do a search and you should find it easy enough. If it is cobweb it should shrink up and dissappear, cobweb = curable, goodluck hope this helped.

JCLE:peace:


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Failure is not an option, it's an adventure! - JewelessCaesar


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Offlinec0_hush
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Registered: 07/16/06
Posts: 417
Last seen: 12 years, 4 months
Re: Oh no! Another Contam Question! [Re: JewelessCaesar]
    #7760942 - 12/15/07 04:36 AM (16 years, 1 month ago)

That looks kinda like mine, I would guess it's cobweb too, it got all 16 of my 1/4 pints and I just tossed them out before realizing it was curable but I probably wouldn't have wanted to deal with doing the peroxide thing on all 16 jars but then again I'm new so I'll watch this thread for more replies... Here is a pic of what mine looked like on top and that same jar on it's sides, yours might also have white patches like this on the inside of the casing so I don't know how viable that peroxide treatment will be... Good luck, it would suck if you had to chuck that whole casing. It sure hurt throwing out all 16 jars for me.





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Offlineveda_sticks
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Registered: 07/29/07
Posts: 14,191
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Last seen: 4 years, 25 days
Re: Oh no! Another Contam Question! [Re: c0_hush]
    #7760954 - 12/15/07 04:50 AM (16 years, 1 month ago)

Thats cobweb in your jars, your dry verm filter doesnt look very dry. If it gets wet, contams can easily grow threw it and into your substrate.

I wouldnt try and save a colinised jar.

Cobweb on casings is recoverable.


--------------------

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OfflineNibin
Getting there
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Registered: 11/29/05
Posts: 4,480
Last seen: 10 years, 8 months
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Re: Oh no! Another Contam Question! [Re: JewelessCaesar]
    #7760959 - 12/15/07 04:54 AM (16 years, 1 month ago)

Quote:

JewelessCaesar said:
Looks like cobweb to me, try spraying it with a diluted h202(peroxide and water). I'm not sure of the correct formula.. I just add about 3 % of whatever sprayer I'm using but do a search and you should find it easy enough. If it is cobweb it should shrink up and dissappear, cobweb = curable, goodluck hope this helped.

JCLE:peace:




You shouldn't dilute peroxide when treating for cobweb. The stuff in the bottle is only 3% peroxide to start off with.

To treat for cobweb (not saying that the stuff in the pics is cobweb) spray with peroxide as it comes in the bottle 3 times, with 12 hours between each spraying.


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InvisibleJewelessCaesar
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Registered: 05/26/06
Posts: 599
Loc: Petros-Joyner, TN, USA Flag
Re: Oh no! Another Contam Question! [Re: Nibin]
    #7760975 - 12/15/07 05:15 AM (16 years, 1 month ago)

You shouldn't dilute peroxide when treating for cobweb. The stuff in the bottle is only 3% peroxide to start off with.

To treat for cobweb (not saying that the stuff in the pics is cobweb) spray with peroxide as it comes in the bottle 3 times, with 12 hours between each spraying.




Well I have read that too much H2O2 can be harmful to mycelium. So I diluted mine and it worked fine, best advice I can give is, don't put yourself in the situation to contract cobweb, sterile is sexy in this business. :grin:

Good luck
JCLE:peace:


--------------------
Failure is not an option, it's an adventure! - JewelessCaesar


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OfflineRogerRabbitM
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Registered: 03/26/03
Posts: 42,214
Loc: Seattle
Last seen: 11 months, 3 days
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Re: Oh no! Another Contam Question! [Re: JewelessCaesar]
    #7761064 - 12/15/07 07:29 AM (16 years, 1 month ago)

Being sterile has nothing to do with cobweb, which is what is above. You can't have a sterile growing area. Fresh air exchange is the best way to prevent it because Dactylium loves stale, still air.

3% peroxide is the correct dilution to use to kill cobweb. In the US, it's already diluted to 3% when you buy it at drug and grocery stores. If you live in a country where it's stronger, dilute with distilled water to get the 3% peroxide you need.
RR


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"I've never had a failed experiment.  I've only discovered 10,000 methods which do not work."
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