various categories of poisonous chemicals used to kill pests. Pesticides include fumigants, fungicides, herbicides, insecticides and rodenticides

Any chemical substance that is used to control undesirable insects, diseases, vegetation, animals, or other forms of life.

Chemicals developed to control a wide variety of pests in primarily agricultural and forest environments.

Substances or mixtures thereof intended for preventing, destroying, repelling, or mitigating any pest. Also, any substance or mixture intended for use as a plant regulator, defoliant, or desiccant.