1. Noun. Any naturally-occurring (rather than synthetic) pesticide ¹
¹ Source: wiktionary.com
Medical Definition of Biopesticide
1. A pesticide in which the active ingredient is a virus, fungus, or bacteria, or a natural product derived from a plant source. A biopesticide's mechanism of action is based on specific biological effects and not on chemical poisons.
(14 Nov 1997)
