Proceedings of the Hawaiian Entomological Society (1995) 32, p. 61 (Vargas)

Roger I. Vargas (1995)
Ecology of the Oriental fruit fly, melon fly, and Mediterranean fruit fly (Diptera: Tephritidae) on the island of Ni'ihau, Hawai'i
Proceedings of the Hawaiian Entomological Society 32, 61-61
Abstract: Ni'ihau Island, Hawaii, was surveyed for the first time for Mediterranean fruit fly, Ceratitis capitata, Oriental fruit fly, Bactrocera dorsalis, and melon fly, Bactrocera cucurbitae. Populations of all three species were low compared to nearby Kauai Island. Overall annual mean (± SD) capture rates for Oriental fruit fly, melon fly, and Mediterranean fruit fly were 2.5 ± 3.2, 3.9 ± 6.2, and 0.003 ± 0.004 flies per trap per day, respectively, for 1990 (n = 7 traps); 12.5 ± 15.5, 8.8 ± 10, and 0.05 ± 0.14 flies per trap per day for 1991 (n = 7 traps); and 8.4 ± 13.4, 6.1 ± 9.5, and 0.01 ± 0.01 flies per trap per day during 1992 (n = 10 traps). On the basis of variance/mean relationships, Oriental fruit fly and melon fly distributions were highly aggregated (variance/mean > 1), apparently in response to the presence of localized concentrations of host fruits. Oriental fruit fly and Mediterranean fruit fly populations were centered in the village of Pu'uwai where fruit trees were common near houses and at Kiekie where an experimental coffee (Coffea arabica) field was being cultivated. Melon fly populations were centered in wild cucurbits areas.
Database assignments for author(s): Roger I. Vargas

Research topic(s) for pests/diseases/weeds:
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Bactrocera dorsalis		U.S.A. (Hawaii)
	Ceratitis capitata		U.S.A. (Hawaii)
	Zeugodacus cucurbitae		U.S.A. (Hawaii)