listed by the Organic Materials Review Institute (OMRI) for use in organic production. Expiration date: January 31st 2028

Bacillus thuringiensis, subsp. israelensis, strain AM 65-52

fermentation solids, spores and insecticidal toxins . . . . . 37.4%

Other Ingredients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.6%

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100.0%

Gnatrol WDG Organic B.T.I. Fungus Gnat Larvicide. OMRI Organic

Name: Gnatrol WDG Organic B.T.I. Fungus Gnat Larvicide. OMRI Organic
Brand: Valent

$17.95

Ounces

Quantity

Apply at 1-3 teaspoons B.T.I. per 1 gallon of water.

1 ounce of concentrate will make 3.84 gallons at 3 tsps per gallon.
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.

Kill Fungus Gnat Larvae in 24–48 Hours (Without Chemicals)
Gnatrol BTI Larvacide