Plant pest. Any living stage of any of the following that can directly or indirectly injure, cause damage to, or cause disease in any plant or plant product: A protozoan, nonhuman animal, parasitic plant, bacterium, fungus, virus or viroid, infectious agent or other pathogen, or any article similar to or allied with any of the plant pests listed in this definition.
7 CFR § 352.1
This part may be cited by the short title: Safeguard Regulations. This title shall be understood to include both the regulations and administrative instructions in this part.