AquaBac 200G Granular Bacillus thuringiensis var. israelensis (Bti). Bti is eaten by the mosquito larva and becomes highly toxic to the larva killing them within minutes after ingestion. Since the bacteria are harmless to other mosquito and black fly larva predators, these predators continue to feed on the larva and work in concert with Bti to keep the larva population in check. OMRI Listed.
Active Ingredients: Bacillus thuringiensis 2.86%
EPA Signal Word - CAUTION / PRECAUCION