Temperature-time relationships for mortality rates of third instars of Caribbean fruit fly, Anastrepha suspense (Loew), were examined under controlled laboratory conditions. In replicated tests, a measured number of larvae first was placed in metal tubes containing rearing diet; they were submerged in 40, 43, or 47°C water baths for durations at 10-min increments. No mortality was observed as a result of the pretreatment temperature increase from ambient (≍25°C) to 40°C. Acute (immediate) death, which was determined by the failure to pupate, occurred in most larvae after 90 min of 40°C and 10 min of 43°C treatments and all treatments of 47°C. Chronic (protracted) mortality, determined by the failure to eclose, differed from acute mortality for only 40°C treatments at ≤90 min. We propose possible causes of acute and chronic mortalities. We also discuss application of the mortality data in the development of potential quarantine treatments.
Document Type: Research Article
Publication date: June 1, 1994
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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.