Active Ingredient (a.i.)

An ACTIVE INGREDIENT (A.I.) is the chemical or substance Component of a pesticide product that can kill,repel, attract, mitigate or control a pest or that acts as a plant growth regulator, desiccant, or nitrogen stabilizer. The remainder of a formulated pesticide product consists of one or more "inert ingredients” (such as water, solvents, emulsifiers, surfactants, clay and propellants), which are there for reasons other than pesticidal activity.