the larva of a cosmopolitan noctuid moth, Heliothis zea, that is highly destructive to crops, especially corn, cotton, and tomato.
Origin of corn earworm
An Americanism dating back to 1795–1805
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for corn earworm
US the larva of the noctuid moth Heliothis armigera, which feeds on maize and many other crop plantsSee also bollworm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012