- Current Lot number: 345-655-PG30
- Expiration date: January 2026 (Stored properly in a dark environment at room temperature the manufacture states there is no hard expiration date but they suggest to use this lot within 2 years for peak effectiveness)
- Gnatrol is OMRI-listed for organic production
Gnatrol Biological Larvicide. Fungus gnat larvae don’t stand a chance.
Gnatrol is a highly selective, biological larvicide for use in greenhouses to control fungus gnat larvae. It may be used on a wide variety of ornamentals, as well as all bulb crops, bedding plants and vegetable sets. Once the larvae have ingested Gnatrol, they become paralyzed, stop feeding immediately and die—usually within 24 hours. Gnatrol is now available in a water dispersible granule (WDG) formulation that will not leave a residue and is easier to measure for increased application accuracy.
Gnatrol WDG is listed by the Organic Materials Review Institute (OMRI) for use in organic production.
1 ounce of concentrate will make 8 gallons at the rate of 1 teaspoon per gallon.
For use as a soil drench or in a hydroponic system.
Bacillus thuringiensis, subsp. israelensis, strain AM 65-52
fermentation solids, spores and insecticidal toxins . . . . . 37.4%
Other Ingredients . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62.6%
Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100.0%
1 Ounce Gnatrol BTI - Organic Concentrate
This listing is for 1 ounces of Gnatrol with instructions. This will make between 2.56 gallons at the heavy infestation rate of 3 tsps per gallon and 20.83 gallons at the low rate used for maintenance control of 1/4 tsp per gallon.