Natural Fungus Gnat Death Drops are a microbial insecticide effective against fungus gnats. It is an EPA registered product. The active ingredient is BTI: Bacillus thuringiensis subspecies israelensis Strain BMP 144. To treat fungus gnats, apply Natural Fungus Gnat Death Drops as a drench to sufficiently wet the surface of the growth medium of ornamental plants, vegetables, or herbs.
