Vapor-Heat Treatment of Carambolas Infested With Caribbean Fruit Fly (Diptera: Tephritidae)

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Subjecting carambolas, Averrhoa carambola L., infested with Caribbean fruit fly, Anastrepha suspense (Loew), larvae to vapor heat (saturated hot air) at 46-46.3 (air speed of 1.0-1.1 m/s) for 90 min followed by cooling in relatively still air at ˜23 ± 0.5OC provided probit 9 security (99.9968% mortality) with 95% confidence. When mfested carambolas were exposed to vapor heat at 46-46.3 for 90 min and then immediately immersed in 13 ± O.2°e water for 1 h, 3 of an estimated larval population of 45,856 survived, indicating that rapid cooling of the fruit reduced larval mortality. Vapor-heat treatment of carambolas at 49-49.SoC for 45 or 60 min damaged the fruits. Shelf life and color quality of carambolas treated with vapor heat at 4S.S-4S.6"C for 90 or 120 min or 46-46.3 for 60 or 90 min were not significantly reduced compared with controls.

Document Type: Research Article

Publication date: December 1, 1990

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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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