AQUABAC fg is a formulated and labeled microbial insecticide powered by Bacillus thuringiensis israelensis (Bti) for control of fungus gnats in greenhouse and nursery environments. Bti is a naturally occuring soil bacteria that acts as a biological larvicide (biolarvicide) against fungus gnats, mosquitos and midges.
AQUABAC fg can be applied to ornamentals, vegetables, herbs and flowers in greenhouses and nurseries when fungus gnats are present in the soil or medium. It can be applied through chemigation, sprinkler chemigation, drench irrigation, flood and furrow systems.
The Bti in AQUABAC fg works as an insecticide by producing a protein (insecticidal crystal protein – ICP) that is lethal to the pest larvae once it is ingested. This deadly process occurs rapidly after application; some will die within hours with complete larval mortality within 24 hours. Since AQUABAC fg must be ingested by the larvae to perform as an insecticide, this product will not be effective against insect pupae and adults. Insects in the late larval stages that are no longer actively feeding are also not affected.
Bti does not persist in water or soil. Its active ingredient of Bti is already found in the soil and the protein crystals it produces will separate naturally from the water and settle on the bottom. Once they settle, these crystals become food for other organisms or break down organically.