Gnatrol WDG is an OMRI organic BTI larvicide that targets fungus gnat larvae directly in the soil. Safe for houseplants, hydroponics, coco, and organic growing. Stops the infestation cycle in 24–48 hours.
 
FAQ
How long does Gnatrol take to work?
Larvae usually stop feeding within 24–48 hours after treatment.
 
Does Gnatrol kill adult fungus gnats?
No. Gnatrol targets larvae in the soil, which stops the infestation cycle at the source.
 
Is BTI safe for houseplants?
Yes. BTI is widely used for fungus gnats in indoor plants, hydroponics, and organic growing.
 
Expiration date: January 31st 2028

Gnatrol BTI Organic Fungus Gnat Larvicide – Multiple Sizes

Name: Gnatrol BTI Organic Fungus Gnat Larvicide – Multiple Sizes
Brand: Valent

17,95 $

Ounces

Anzahl

Coverage depends on application strength:

• Heavy infestation rate (3 tsp per gallon):
1 ounce Gnatrol treats approximately 3.5 gallons of water

• Maintenance / prevention rate (1/4 tsp per gallon):
1 ounce Gnatrol treats approximately 44 gallons

Suitable for fungus gnat control in:
• Houseplants
• Hydroponics
• Coco coir
• Soil grows
• Organic gardening
Application Instructions:

*To be 100% effective 3 applications need to be made over 15 days.

Apply once every 5 days to break the life cycle.

Application:

1 teaspoon per gallon for an active light infestation.
2 teaspoons per gallon for a medium infestation.
3 teaspoons per gallon for a typical infestation.

Apply it to the top 2 inches of soil as a drench every 5 days until the adults are not flying around anymore. Usually 15-20 days or less to fully eradicate them.

Hydroponic application is the same mixture per gallon as soil but with a large reservoir it's easier to use weight per gallon over teaspoons:

Light infestation: 1-1.5 ounces per 25 gallons

Medium infestation: 2-3 ounces per 25 gallons

Heavy infestation: 3.25 - 6.5 ounces per 25 gallon

*As in soil you need to add B.T.I. to your hydroponic tank three times total, once every 5 days to break their life cycle.

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Gnatrol BTI Organic Fungus Gnat Larvicide – Multiple Sizes

Coverage & Mixing Rates

Detailed Application Instructions:

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