Monday, December 10, 2007
D0158

Non-host status of Kapoho Solo and Sunrise Solo papaya (Carica papaya L.) to Oriental fruit fly (Bactrocera dorsalis Hendel)

Ming Yi Chou, mingyi@hawaii.edu, University of Hawaii, Department of Plant & Environmental Protection Sciences, 3050 Maile Way, Gilmore 310, Honolulu, HI, Ronald Mau, maur@ctahr.hawaii.edu, University of Hawaii - Manoa, Department of Plant and Environmental Protection Sciences, College of Tropical Agriculture & Human Resources, 3050 Maile Way, Honolulu, HI, and Roger I. Vargas, roger.vargas@ars.usda.gov, USDA-ARS, 64 Nowelo St, Hilo, HI.

A field survey on the island of Molokai was conducted to determine the infestation rates of oriental fruit fly (Bactrocera dorsalis Hendel) in two Solo varieties of papaya (Carica papaya L.), ‘Kapoho’ and ‘Sunrise’, based on varying levels of visual and “hot spot” colorimetric b indices of fruit ripeness. Oriental fruit fly infestations were found in all stages of Kapoho Solo fruits. The infestation rate ranged from 2 to 50 % in mature green to fully ripe fruits. Mature green and quarter ripe (b < 30) Sunrise Solo papayas were found free of oriental fruit fly infestation. Laboratory trials were followed to determine the host status of the four ripeness stages in the two varieties.


Species 1: Diptera Tephritidae Bactrocera dorsalis (Oriental fruit fly)

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