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Gnatrol WDG

(61 customer reviews)


Gnatrol WDG – 1oz Pack
Gnatrol WDG – 2 - 1oz Packs
Gnatrol WDG – 4oz Pack

Gnatrol WDG - 1oz, 2-1oz pack, 4oz package

Fungus gnats can be annoying, especially in your home. Break the cycle by killing the larvae that live in the soil.

The active ingredient in Gnatrol, Bacillus thuringiensis subspecies israelensis, is a biological larvicide that will kill larvae within 24 hours. Use every 5-7 days to interrupt the gnat life cycle. Easy to mix and apply when watering. Mix at a rate of ¼-1 ½ teaspoons per gallon of water for light to heavy infestation. OMRI Listed. Use yellow sticky traps to monitor and capture fungus gnat adults.

Packaging 3.5” x 6” flat

61 reviews for Gnatrol WDG

  1. Christina R. (verified owner)

    usUnited States

  2. Joanne Harris (verified owner)

    usOhio, United States

  3. Lori Leach (verified owner)

    Thank you for providing this in smaller quantities. For the first time, my fungus gnat prevention strategies were not enough. The stress of seeing this unfold in my growing room was terrible! When I saw this smaller quantity, I decided to give it a try. It really works! (zero gnats in just a few weeks!) Now I realize I need to use this regularly…and cross fungus gnats off my anxiety list forever!

  4. Joya S. (verified owner)

    usCalifornia, United States

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