PROGENY PRODUCTION AND DURATION OF DEVELOPMENT OF RUSTY GRAIN BEETLES, CRYPTOLESTES FERRUGINEUS (STEPHENS) (COLEOPTERA: CUCUJIDAE), ON CRACKED AND WHOLE CORN

Authors

James E. Throne, USDA-ARS, Manhattan, KSFollow
Mark P. Culik, USDA-ARS

Date of this Version

1989

Citation

J. Entomol. Sci. 24(1):1 50-155 (January 1989)

Comments

This document is a U.S. government work and is not subject to copyright in the United States.

Abstract

Progeny production and duration of development of rusty grain beetles, Crytptolestes ferrugineus (Stephens), maintained at 43 and 75% RH were determined on whole and cracked corn. Number of progeny produced per female per day of oviposition ranged from 0 on whole corn maintained at 43% RH to 2.2 on coarsely cracked corn maintained at 75% RH. Duration of development ranged from 6.1 weeks on coarsely cracked corn maintained at 75% RH to 12.0 weeks on whole corn maintained at 43% RH. Progeny production was generally greatest and duration of development was generally shortest at 75% RH. Progeny production increased and duration of development decreased as particle size of cracked corn increased at 75% RH. Few progeny were produced on whole kernels.