A study, published in the October issue of Environmental Toxicology and Chemistry, said crop and non-crop uses of imidacloprid in the U.S. are of minimal risk to aquatic invertebrates. The neonicotinoid imidacloprid is one of the most widely-used insecticides. Imidacloprid is a systemic insecticide which acts as an insect neurotoxin which act on the central nervous system of insects. This ecotoxicological review and risk assessment details the body of research, the careful selection and use of the best available data, and the probabilistic risk assessment. The probabilistic approach better predicts the effects to sensitive species, the relevant exposures and the potential risks to aquatic invertebrates in terms of the actual label use directions, and the natural environment for these crops and treated landscapes.