Bacillus thuringiensis israelensis (Bti) is a naturally occurring bacterium that has revolutionized pest control with its environmentally friendly and highly effective approach. Bti specifically targets the larvae of mosquitoes, blackflies, and fungus gnats, making it an essential tool for managing pests in residential, agricultural, and commercial settings. When applied to breeding sites, Bti releases protein toxins that are ingested by the larvae. These toxins disrupt the larvae's digestive system, leading to their death within hours. Remarkably, Bti’s mechanism of action is species-specific, ensuring that it poses no harm to beneficial insects, plants, animals, or humans. Additionally, it breaks down quickly in the environment, leaving no harmful residues behind. This powerful yet safe solution is a cornerstone in integrated pest management, trusted by professionals worldwide for its ability to protect public health and the environment. From controlling mosquitoes that spread diseases to managing agricultural pests, Bti provides a sustainable alternative to chemical insecticides.