QUANTITATIVE DESCRIPTION OF THE INFLUENCE OF FLUCTUATING TEMPERATURES ON THE REPRODUCTIVE BIOLOGY AND SURVIVAL OF THE WESTERN CORN ROOTWORM, DIABROTICA VIRGIFERA VIRGIFERA LECONTE (COLEOPTERA: CHRYSOMELIDAE)
- 1 February 1990
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 122 (1), 59-68
- https://doi.org/10.4039/ent12259-1
Abstract
Adult corn rootworm beetles, Diabrotica virgifera virgifera LeConte, were maintained at five fluctuating temperature regimens with daily average temperatures of 16.0, 19.5, 23.0, 26.5, and 30.0°C. The mean number of eggs laid per female was greatest (602) at 26.5°C and least (295) at 16.0°C. The median length of life decreased with increasing temperature from 13.8 weeks at 19.5°C to 7.9 weeks at 30.0°C. Parameters were estimated for nonlinear functions relating age-specific fecundity and age-specific survival to physiological age.Keywords
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