Parasite Posted on November 8, 2022August 1, 2023 by Tex Norwood Tags: CareAn organism that lives in or on another organism (host) and derives its food from the latter. Related Images:Related Articles: Scales – PestGlossary: Downy MildewGlossary: Host plantGlossary: Host rangeWhitefly – PestVisit our InfoTIP Glossary