Host plants and relative abundance of fruit fly (Diptera: Tephritidae) species in the Solomon Islands

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Title Host plants and relative abundance of fruit fly (Diptera: Tephritidae) species in the Solomon Islands
Author Hollingsworth, Robert G.; Drew, Richard Arthur Ian; Allwood, Allan J.; Romig, Meredith Clare; Vagalo, Maclean; Tsatsia, Francis
Journal Name Australian Journal of Entomology
Year Published 2003
Place of publication Australia
Publisher Blackwell Publishing Asia
Abstract Tephritid fruit flies were surveyed using male lure Steiner traps and by collection of host fruits over a 4-year period (June 1994June 1998) throughout the nine provinces of the Solomon Islands. The purpose of the survey was to determine which species were present, which were most abundant, and which commercial and non-commercial fruits were hosts for fruit flies. A total of 1 051 493 fruit fly specimens were collected in 1726 trap collections from 117 sites. Sixty-three per cent of trap collections were made on the island of Guadalcanal. Overall, 37 fruit fly species were recovered from trap samples, with 79% and 21% of specimens from cuelure and methyl eugenol traps, respectively. The species most common in cuelure traps were Bactrocera frauenfeldi (Schiner) (mango fly), B. moluccensis (Perkins), B. simulata (Malloch), Dacus solomonensis Malloch and B. redunca (Drew). The species most common in methyl eugenol traps were B. umbrosa (Fabricius), B. froggatti (Bezzi) and B. pepisalae (Froggatt). With the exception of B. cucurbitae (Hendel), all common species were recovered in all provinces. B. cucurbitae was the only non-indigenous fruit fly species collected. The number of fruit fly species recovered in each island group was significantly and positively related to trapping intensity. A total of 2527 fruit samples were collected to determine host relationships for fruit flies. Tephritid fruit flies were reared from fruits of 25 of the 67 commercial plant species sampled. However, fruit-survey data indicated that there were only four economic species in the Solomon Islands: (i) B. frauenfeldi; (ii) B. umbrosa; (iii) B. cucurbitae; and (iv) D. solomonensis. Bactrocera frauenfeldi was identified as the only generalist fruit fly species present, and many potential export crops were not hosts for any fruit fly species. These facts emphasise the importance of effective quarantine measures to prevent the accidental introduction of exotic fruit fly pests that might limit or complicate the development of an export industry for fruits and vegetables.
Peer Reviewed Yes
Published Yes
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Copyright Statement Copyright 2003 Blackwell Publishing. The definitive version is available at []
Volume 42
Page from 95
Page to 108
ISSN 1326-6756
Date Accessioned 2004-03-30
Language en_AU
Faculty Faculty of Environmental Sciences
Subject Ecology and Evolution
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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