Kill Fungus Gnat Larvae in 24–48 Hours (Without Chemicals)
Gnatrol BTI Larvacide
Professional BTI larvicide that eliminates fungus gnats at the source.
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Buy genuine Gnatrol WDG in smaller quantities...​
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✔ Kills fungus gnat larvae at the source
✔ Trusted BTI biological control
✔ Available in small, easy-to-use quantities
✔ Targets larvae directly in soil and hydroponic systems
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BTI (Bacillus thuringiensis israelensis) is one of the most effective ways to eliminate fungus gnat larvae in soil.
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Step 1: Mix BTI (Gnatrol WDG) with water according to label directions.
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Step 2: Apply the solution directly to moist soil where fungus gnats are present.
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Step 3: Repeat every 5–7 days to break the life cycle.
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BTI works by targeting larvae in the soil, stopping the infestation at the source.
Why BTI Works Better Than Other Methods
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Unlike sticky traps that only catch adult gnats, BTI targets larvae in the soil where the infestation begins. This makes it one of the most effective long-term solutions for fungus gnat control.
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Using Gnatrol WDG ensures consistent, reliable results for both indoor plants and hydroponic systems.