Time/Mortality Relationships for Anastrepha suspensa (Diptera: Tephritidae) Eggs and Larvae Submerged in Hot Water

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Time/mortality 'relationships were determined for eggs and 1- to 2-d-old and mature third-instar Caribbean fruit fly, Anastrepha suspensa (Loew), exposed to hot water. When eggs were submerged in water at 43.3, 46.1, 48.9, 51.7, or 54.4°C, estimated submersion times for 99% mortality were 24.8, 8.3, 2.0, 1.2, and 0.9 min, respectively; when larvae 1–2 d old were submerged in water at 43.3, 46.1, 48.9, 51.7, or 54.4°C, estimated submersion times for 99% mortality were 30.7, 6.6, 2.4, 1.5, and 0.7 min, respectively. When mature third instars were submerged in water at 40.56, 41.94, 43.3, 46.1, 48.9, 51.7, or 54.4°C, projected submersion times for 99% mortality were 77.8, 43.7, 13.5, 5.3, 2.0, 1.3, and 1.6 min, respectively. At 43.3 and 46.1°C, eggs were more resistant to heat than mature larvae and at 43.3°C, 1- to 2-d-old larvae were more resistant than mature larvae. The data may be useful in determining suitability of hot-water submersion treatments for disinfesting commodities attacked by A. suspensa and for comparing hot-water tolerance of A. suspensa with that of other tephritid species.

Document Type: Research Article

Publication date: June 1, 1987

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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.
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