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Nematodes for fungus gnats


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#1
Rakk187

Rakk187

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I recently ran into a problem that I seem to be having some difficulty resolving. I run hydro-buckets that are top fed by drip rings. A couple weeks ago I found fungus gnat larvae residing within each bucket. I did some research and found that beneficial nematodes would help resolve this problem, however all cases discussed pertained to soil growing mediums (I use expanded clay balls). I obtained some nematodes from my local garden shop, and following the directions exactly I treated my plants.

I kept the nematodes refridgerated
I applied them in the dark
I mixed the nematode mix with water to apply

I waited for about a week before I checked the fungus gnat situation again, this way the nematodes were not exposed to any more light than necessary. Unfortunately when I did check, the fungus gnat larvae were still present, however their population had declined.

I was wondering if anyone has any experience with fungus gnats in hydro systems, or with nematodes in hydro systems, and may have a solution for my problem or an idea of the effectiveness of nematodes as a biological control in hydro systems.

#2
Rakk187

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I also failed to mention that I have sticky fly paper set up throughout my room and on top of the buckets. I have not seen any adult fungus gnats on any of these sticky traps.

#3
ttibbar

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I have not used nematode, just heard about it but a friend
told me to keep a pan of soapy water in the room. The gnats
like the bubbles, they fly into it and drown. My water is
always full of gnats,it works. What I don't know is if they
have already laid their eggs.

#4
mrscalia

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slice of potato


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