Effects of Heating Rate on the Mortality of Fifth-Instar Codling Moth (Lepidoptera: Tortricidae)
Author: NEVEN, LISA G.
Source: Journal of Economic Entomology, Volume 91, Number 1, February 1998 , pp. 297-301(5)
Publisher: Entomological Society of America
Abstract:Models were developed to describe the effects of heating rate during heat treatments on the mortality of 5th-instar codling moth, Cydia ponwnella (L.). An old model, developed from previous studies over a limited range of heat treatments, was 1st formulated. Subsequent heat treatments, using a computerized water bath system and linear heating rates of 4,6,8,10, and 12°C/ h at 42,44,and 46°C,were used to test the old model.The mortality data from the water bath study were used to develop a new model.Although the old model provided a good estimate of the effects of heating rate on 5th-instar mortality, it overestimated mortality at midrange heating rates. Also, the old model was awkward to use because it required a correction for each treatment temperature. The new model incorporated treatment temperature into the equation, and was more accurate and easier to use. It was determined that the slower the rate of heating, the longer the exposure to the final treatment temperature was needed to achieve 95%mortality.
Document Type: Research article
Publication date: 1998-02-01
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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