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United States Department of Agriculture

Agricultural Research Service

Title: Populations of Bactrocera Cucurbitae (Diptera: Tephritidae) and Its Parasitoid, Psyttalia Fletcheri (Hymenoptera: Braconidae) in Coccinia Grandis (Ducurbitacea) Or Ivy Gourd on Hawaii Island

item Jackson, Charles
item Vargas, Roger
item Suda, David - USDA-ARS BASIN RES CTR HI

Submitted to: Hawaiian Entomological Society Proceedings
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 23, 2003
Publication Date: N/A

Interpretive Summary: Scarlet-fruited gourd is a climbing vine that can cover trees, fences, power lines, and buildings. It has invaded Hawaii, where it has been declared a noxious weed. Besides being a pest, its fruit serves as a host for the melon fruit fly that is a serious pest of cucurbits and a potential invader of the mainland USA. We sampled scarlet-fruited gourd for two years sto determined its contribution to melon fly populations. We reared 500 - 800 flies from each kilogram of fruit, demonstrating that this weed is an important contributor to melon fly populations. Only 5-6% of the melon flies were parasitized during the two-year study. This weed should be considered in any pest management program to control melon flies.

Technical Abstract:

Last Modified: 4/17/2015
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