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  • "Gnat-nix"

    I was out getting a sack of potting soil today and got chatting with the guy at the grow store. He recommended a product called "Gnat-nix" for those pesky fungus gnats. It's a top dressing made of recycled glass, about the size of coarse sand. It is supposed to help prevent fungus gnat problems. I know a lot of you use Gnatrol, but when possible, I prefer to stay away from pesticides. Has anyone tried this stuff? Does it work?
    USDA Zone 9b Wish list: Abruzzi, Pasquale, Filacciano, Tagliacozzo, Zingarella, Godfather. Any, including unknowns, from Abruzzo, Italy.

  • #2
    I noticed that gnats avoid my mix with the Napa floor dry, it has a faint hydrocarbon odor.

    No, I have not tried the Gnat-nix, had no need.
    USDA z 10a, SoCal. WL: De la Roca, Lampeira Prush, Raspberry Tart, Boysenberry Blush

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    • #3
      FYI gnatrol is biological.
      Phil
      Zone 7A - Newark, DE; Zone 8A - Wilmington, NC;

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      • greenfig
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