Infestation Rates of Papaya by Fruit Flies (Diptera: Tephritidae) in Relation to the Degree of Fruit Ripeness
Authors: LIQUIDO, NICANOR J.; CUNNINGHAM, ROY T.; COUEY, MELVIN H.
Source: Journal of Economic Entomology, Volume 82, Number 1, February 1989 , pp. 213-219(7)
Publisher: Entomological Society of America
Abstract:Infestation rates of oriental fruit fly, Dacus dorsalis Hendel, and melon fly, Dacus cucurbitae Coquillett, were determined in mature green, color-break, quarter, half, three-fourth, and fully ripe papaya ( Carica papaya L. cv. Kapoho Solo)fruits. These qualitative ripeness descriptions were based on the extent of the fruits' yellow color development. Infestation rates of papaya by the two species of Dacus increased with the increase in degree of fruit ripeness. The density of oriental fruit flies in papaya was much greater than that of melon flies, especially in half- to fully ripe fruits. The 1949-1981 survey record data and the 1979-1986 field infestation data revealed a gradual increase in the occurrence of melon flies in papaya, apparently because of changes in the farmers' cultural practice. Papaya, which has been considered as an "occasional host" of the melon fly, is becoming a more common host under unsanitary field cultural conditions. Results of our study are discussed in relation to the biology and ecology of the two species of Dacus and in the development of regulatory quarantine treatments designed to disinfest papaya with the fruit flies.
Document Type: Research Article
Publication date: February 1, 1989
- 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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