Temperature-dependent Development and Feeding of Immature Colorado Potato Beetles, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)
Document Type
Article
Date of Original Version
12-1-1985
Abstract
Mean development rate of eggs of the Colorado potato beetle, Leptinotarsa decemlineata (Say), at 10 constant temperatures over the range 15 to 33°C is fit with a bounded sigmoid curve. The distribution of development rates is modeled using a temperature-dependent normalizing function and a sigmoid curve fit to cumulative development. When eggs are alternated between 25 and 35°C for limited durations, development rates vary from those predicted using constant-Temperature results. This is explained as a product of selective mortality and time lags in shifts between rate-controlling mechanisms. Mean development rate of larvae at 10 constant temperatures over the range 15 to 33°C is fit with a simple sigmoid curve, and distributed development of larvae is described in a manner similar to that used to describe the distribution of egg development rates. Total feeding of the 4 larval instars over the range 15 to 33°C is described as a constant (instars 1 and 2) or a 2nd-order polynomial (instars 3 and 4). Mean development rate of pupae at 11 constant temperatures over the range 10 to 31°C is fit with a simple sigmoid curve.
Publication Title, e.g., Journal
Environmental Entomology
Volume
14
Issue
6
Citation/Publisher Attribution
Logan, Patrick A., Richard A. Casagrande, Heather H. Faubert, and Francis A. Drummond. "Temperature-dependent Development and Feeding of Immature Colorado Potato Beetles, Leptinotarsa decemlineata (Say) (Coleoptera: Chrysomelidae)." Environmental Entomology 14, 6 (1985). doi: 10.1093/ee/14.3.275.