Potential Quarantine Treatments for White Sapote Infested with Caribbean Fruit Fly (Diptera: Tephritidae)

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Abstract:

White sapote, Casimiroa edulis Llave & Lex., was subjected to three quarantine treatments known to kill immature Caribbean fruit fly, Anastrepha suspense (Loew), in other fruits. Cold storage at 1 or 3°C for 15 and 18 d, respectively, did not cause appreciable harm to white sapotes compared with fruits stored at the normal 7°C. Immersion of white sapotes in water at 43.3°C for 90 or 120 min or at 46°C for 60 or 90 min caused considerable pitting and decay and interfered with ripening. Fumigation with methyl bromide at 24 and 40 g/m3 (24 ± l.O°C) gave a reddish hue to white sapote, interfered with ripening, and increased the rate of decay. Cold storage at 1°C for 2-12 d was examined for its effectiveness in killing Caribbean fruit fly immatures in white sapote. Dose-mortality data were analyzed using the normal, logistic, and Gompertz probability density functions (PDF). The logistic PDF gave unrealistically low estimates of probit 9 (99.9968%) mortality; estimates using Gompertz, log 10, seemed too high. The normal PDF and Gompertz, non log 10, gave reasonable estimates of probit 9.

Document Type: Research Article

Publication date: June 1, 1993

More about this publication?
  • 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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