Diversity and Abundance of Oriental Fruit Fly Parasitoids (Hymenoptera: Braconidae) in Guava Orchards in Kauai, Hawaii

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Abundance of oriental fruit fly, Dacus dorsalis Hendel, and associated parasitoids was determined in a commercial guava, Psidium guajava L., orchard by canopy fogging and fruit collections during 1988 and 1989. D. dorsalis populations reached a maximum of 2.6 adults per tree in 1988 and 1.4 adults per tree in 1989. Four parasitoid species were recovered from guava tree canopies; Biosteres arisanus (Sonan) was the most abundant species, followed by Diachasmimorpha longicaudata (Ashmead), Psyttalia incise (Silvestri), and Biosteres vandenboschi (Fullaway), respectively. D. dorsalis and parasitoids recovered from guava canopies exhibited different sex ratios from populations that emerged from fruit samples. Abundance of D. dorsalis and its parasitoids was correlated with the number of ripe fruit present in the orchard. Parasitoid abundance was correlated with D. dorsalis abundance in 1988. Diversity and abundance of parasitoids estimated from canopy fogging and fruit collections differed.

Document Type: Research Article

Publication date: October 1, 1991

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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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