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Invisiblezee_werp
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Good methods of gnat control in mid-size oyster shed?
    #3360591 - 11/14/04 05:54 PM (12 years, 3 months ago)

Hey peoples,
A couple of my buddies are working on a small scale buisness venture, growing oyster mushrooms for a few local restaraunts. Everything is going well, apart from the fact that at times they have to throw away 70-80% of their harvests due to fungus gnat larvae infestation.

The area they are growing in is a standard backyard size glasshouse (about 2.5x2.5 meters wide x 2 meters tall) that they converted to a shroom shed using styrofoam sheets etc. They've made the area more or less airtight, with the exception of the intake fan and outtake vent, both of which are covered with filter.

But somehow the gnats are still getting in. They have a small 'bug zapper' (those ones with UV lights and electric coils) but it only kills a relatively small portion of the bugs.

So my question goes out to any of you out there who have successfully controled a fungus gnat problem for an area of this size. What are some good ways? My friends were thinking of further sealing any cracks they can find, as well as trying to get a bigger bug zapper. Anyone got some tips I can pass onto them?


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InvisibleYidakiMan
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Re: Good methods of gnat control in mid-size oyster shed? [Re: zee_werp]
    #3361148 - 11/14/04 07:49 PM (12 years, 3 months ago)

You should keep sticky paper up and replace at regular intervals. You should also record how many bugs are getting stuck.

If you notice an increasing trend of bug sticking, then you should use some type of insecticide (preferably organic, of course) to prevent an outbreak.

I've been thinking about buying some treefrogs and keeping them inside as pets and then use them as my organic insecticide when I need them.


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Offlinepshawny
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Re: Good methods of gnat control in mid-size oyster shed? [Re: YidakiMan]
    #3371012 - 11/16/04 09:56 PM (12 years, 3 months ago)

Give this a serch on google "diatomaceous earth". There are some posts on here somewhere that talk about it a little bit too. Mix it in with your casing and it will kill them.


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OfflineRRhoads
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Re: Good methods of gnat control in mid-size oyster shed? [Re: pshawny]
    #3371673 - 11/16/04 11:52 PM (12 years, 3 months ago)

you can buy it at pool supply shops


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InvisibleYidakiMan
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Re: Good methods of gnat control in mid-size oyster shed? [Re: pshawny]
    #3373306 - 11/17/04 11:31 AM (12 years, 3 months ago)

I highly doubt he is using a casing layer, he is growing oyster mushrooms.


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InvisibleAlkaloids
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Re: Good methods of gnat control in mid-size oyster shed? [Re: zee_werp]
    #3377616 - 11/18/04 05:02 AM (12 years, 3 months ago)

I would additionally recommend that they add a second "anteroom" before the main opening to their glasshouse. This will provide them with some additional room for traps and other containment and control measures.

good luck. Fungus gnats are a real pain.


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OfflinemuleV
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Re: Good methods of gnat control in mid-size oyster shed? [Re: Alkaloids]
    #3379196 - 11/18/04 01:30 PM (12 years, 3 months ago)

sticky tapes hung around a black light works wonders. Also I use lizards


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Agar
One little needle prick with a loaded spore syringe.
And, the spores rule you forever.
:crazy2:

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InvisiblePeterthinks
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Re: Good methods of gnat control in mid-size oyster shed? [Re: mule]
    #3380851 - 11/18/04 07:56 PM (12 years, 3 months ago)

if it's airtight and outside suffocate them.
fill the shed with balloons or blown up garbage bags to take up airspace and fill the whole shed with nitrogen or carbon dioxide.
will lack of O2 or CO2/N hurt shrooms?
it's inert too so you can keep your organic label.we're surrounded by nitrogen and carbon dioxide.
see how long it takes a gnat in a nitrogen gass filled testtube to expire.
I had mice in my garage so I just closed the door and let the car run for an hour or so.
Now I have dead mice.
If the shed is small enough maby you can make it like a flow chamber?
or wind tunnel with enough fan power.
Gnats...flying upstream in the air like salmon!
LOL
if they grow on logs they could treat the logs by putting them in bags and flooding the bags with CO2 then clean out the shed and try again.
Co2 is heavier too so you can literally fill a container with it and it'll stay in it like a liquid.
anyway these aren't tested ideas...just random thoughts.
use at your own discretion.
Lack of oxygen is killing things all the time.Welders in tanks,sewer workers,septic tank dudes,rail car cleaners ect.


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Give a man a fire and he will be warm for the rest of the night.
Set a man on fire and he will be warm for the rest of his life.
NEWB NEWBIE NEWCOMER IGNORANT? QUESTIONS?
Click HERE HERE HERE HERE For detailed instructions with pictures on how to grow mushrooms. There is a lot of info on the Shroomery and this is what you need to know.


Edited by Peterthinks (11/18/04 08:05 PM)


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Offlineragadinks
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Re: Good methods of gnat control in mid-size oyster shed? [Re: Peterthinks]
    #3382656 - 11/19/04 03:31 AM (12 years, 3 months ago)

> I had mice in my garage so I just closed the door and let the car run for an hour or so.
Very creative :wink: - but you must have a very airtight garage ...


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InvisiblePeterthinks
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Re: Good methods of gnat control in mid-size oyster shed? [Re: ragadinks]
    #3383438 - 11/19/04 11:22 AM (12 years, 3 months ago)

Carbon monoxide kills in relatively low amounts and it's cumulative.It attaches to your red blood cells :happyheart: where oxygen normally would and won't let go.:hellfire:
It isn't that I displaced all the oxygen in the garage,it's that the carbon monoxide made it impossible for the mice to use the oxygen that was available. :dead:


--------------------
Give a man a fire and he will be warm for the rest of the night.
Set a man on fire and he will be warm for the rest of his life.
NEWB NEWBIE NEWCOMER IGNORANT? QUESTIONS?
Click HERE HERE HERE HERE For detailed instructions with pictures on how to grow mushrooms. There is a lot of info on the Shroomery and this is what you need to know.


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Offlinejmeuser
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Re: Good methods of gnat control in mid-size oyster shed? [Re: Peterthinks]
    #3443508 - 12/03/04 09:15 PM (12 years, 2 months ago)

I know Stamets uses tree frogs in his grow rooms. . .


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-Jon

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Pleurotus pulmonarius (Pheonix Oyster)
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Offlineragadinks
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Re: Good methods of gnat control in mid-size oyster shed? [Re: jmeuser]
    #3446050 - 12/04/04 04:24 PM (12 years, 2 months ago)

> I know Stamets uses tree frogs in his grow rooms. . .
How come you know that ?


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InvisiblePeterthinks
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Re: Good methods of gnat control in mid-size oyster shed? [Re: ragadinks]
    #3446122 - 12/04/04 04:57 PM (12 years, 2 months ago)

It's in his book


--------------------
Give a man a fire and he will be warm for the rest of the night.
Set a man on fire and he will be warm for the rest of his life.
NEWB NEWBIE NEWCOMER IGNORANT? QUESTIONS?
Click HERE HERE HERE HERE For detailed instructions with pictures on how to grow mushrooms. There is a lot of info on the Shroomery and this is what you need to know.


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Offlineragadinks
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Re: Good methods of gnat control in mid-size oyster shed? [Re: Peterthinks]
    #3447051 - 12/04/04 08:43 PM (12 years, 2 months ago)

Which one ? Think I missed that ...


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InvisibleYidakiMan
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Re: Good methods of gnat control in mid-size oyster shed? [Re: ragadinks]
    #3448405 - 12/05/04 02:05 AM (12 years, 2 months ago)

I think it was in GGMM, he said a resident population of tree frogs occasionally makes the grow rooms home.

I do not think anyone has reported about farming tree frogs and inserting them into the mushroom grow room when infestation is expected.


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Offlineragadinks
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Re: Good methods of gnat control in mid-size oyster shed? [Re: YidakiMan]
    #3449040 - 12/05/04 08:53 AM (12 years, 2 months ago)

> I do not think anyone has reported about farming tree frogs and inserting them into the mushroom grow room when infestation is expected.
Anyway I think it's a nice idea.
But I am not sure it the frogs would not carry contamination into the grow room.


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Mushrooms, Mycology and Psychedelics >> Gourmet and Medicinal Mushrooms

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