Effects of Sterile Mediterranean Fruit Fly (Diptera: Tephritidae) Releases on the Target Species, a Nontarget Tephritid, and a Braconid Parasitoid (Hymenoptera: Braconidae) in Commercial Coffee Fields

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

Abstract:

A 2-yr program of sterile Mediterranean fruit fly, Ceratitis capitata (Wiedemann), releases (yr 1: 535 million; yr 2: 941 million flies) was conducted on Kauai Island, HI., in commercial coffee (Coffea arabica L.) fields. Fruit collections were used to estimate relative abundances of (1) C. capitata, the target species; (2) oriental fruit fly, Bactrocera dorsalis (Hendel), a potential competing fruit fly species; and (3) a beneficial wasp, Biosteres arisanus (Sonan), that attacks both fruit flies. During season 2, C. capitata abundance in the treatment area was suppressed by as much as 56% compared with the control area. In contrast, the number of B. dorsalis in treated coffee fields was within 6% of that in the control field for both years of the study, indicating that its abundance was not affected by C. capitata sterile releases. Numbers of B. dorsalis were not correlated with those of C. capitata, suggesting that these tephritids were not competitors in that habitat at that time. C. capitata and B. arisanus abundances were correlated positively in two of the four situations studied. Mean numbers of B. arisanus per 100 fruits in treated fields were 5.3 and 3.2 during seasons 1 and 2, respectively. Data suggest that high numbers of B. arisanus remain in a habitat inundated with sterile flies and that sterile C. capitata releases are compatible with B. arisanus parasitism for fruit fly control.

Document Type: Research Article

Publication date: June 1, 1994

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more