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Dacus dorsalis: Vapor Heat Treatment in Papayas

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Heating of 4-h-old eggs and nearly mature 3rd-instars of the oriental fruit fly in water in the laboratory indicated that minimum periods for 100% kill were 60, 14, 3, 1, or ¼ min at constant 43.3, 46.1, 48.9, 51.7 or 54.4°C, respectively, for 4-h-old eggs and 65, 18, 5, or ¼ min at constant 43.3, 46.1, 48.9, and 54.4°C, respectively, for 3rd instars. None of 262,555 eggs, 1st, 2nd, and 3rd-instars located in 1095 heavily infested papayas at depths of 0–2.0 cm survived commercial-type vapor heat treatment. Treatment consisted of an average 11-h approach period to raise the mean temperature of the fruit from 23.3° to 44.4°C, and then holding the fruit at a constant mean temperature of 44.4°C for 8-¾h.

Document Type: Research Article

Publication date: April 1, 1974

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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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