A synthesis of the temperature dependent development rate for the obliquebanded leafroller, Choristoneura rosaceana

Abstract

The obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera: Tortricidae), is a serious pest of apples and other tree crops throughout North America. A review of temperature dependent development and models show that five different lower thresholds for development are published and used as the basis of heat-driven phenology models. We present a small lab data set of C. rosaceana development at four different temperatures and combine this with literature-based data into a single meta-analysis. Our analysis shows that the data from the different studies can be lumped together and the combined analysis suggests the lower and upper thresholds for development from egg to adult are approximately 10°C and 30°C, respectively.