caa a22 4500 475834461 CHVBK 20180406123849.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1023/A:1009944520353 doi (NATIONALLICENCE)springer-10.1023/A:1009944520353 Effect of Diachasmimorpha tryoni on two non-target flowerhead-feedingtephritids [Elektronische Daten] [Jian Duan, Russell Messing] Laboratory tests were conducted to evaluate the possible effect of a deliberately introduced fruit fly parasitoid, Diachasmimorpha tryoni, on 2 non-target flowerhead-feeding tephritid flies,Trupanea dubautiae and Ensina sonchi. The former is an nativecomposite endemic Hawaiian tephritid which feeds on flowerheads of the native composite shrub, Dubautia raillar dioides; the latter is an inadvertently introduced tephritid infesting flowerheads of the exotic weed, Sonchus oleraceus. Gravid females of D. tryoniwere confined in test cages with field-collected D.raillardioides and S. oleraceus flowerheads infested with late instars of T. dubautiae and E. sonchi,respectively. D. tryoni showed low levels of visiting and probing responses to D. raillardioides flowerheads and relatively higher responses to S. oleraceus flower heads in both the presence and absence of the parasitoid's normal host, the Mediterranean fruit fly, Ceratitis capitata. With 72-h exposure to D. tryoni, 13.9 and 2.6% of T. dubautiaewere attacked by test parasitoids in the absence and presence of C.capitata in the test cage, respectively; while 56.8 and34.2% of E. sonchi were attacked. In contrast, 94.0 and84.0% of C. capitata larvae presented in screened disheswith diet in test cages were attacked by D. tryoni in testswith T. dubautiae and E. sonchi, respectively. Attackof D. tryoni on flowerhead-feeding T. dubautiae andE. sonchi resulted in significant reduction in the emergence ofadult flies, especially in the absence of the parasitoid's normal host.While 8.8-12.8 adult D. tryoni per test (both males andfemales) successfully emerged from medflies, no adult D. tryoniprogeny emerged from T. dubautiae, and only 3 deformed males ofD. tryoni (much smaller than the normal wasp) emerged fromE. sonchi. The relevance of these findings to the safety offuture biological control programs against tephritid pests is discussed. Kluwer Academic Publishers, 2000 biological control nationallicence Braconidae nationallicence flowerhead feeding nationallicence non-target nationallicence parasitoid nationallicence Tephritidae nationallicence Duan Jian Department of Entomology/KauaiAgricultural Research Center, University of Hawaii, 7370-A Kuamoo Road, Kapaa, 96746, Kauai, HI, USA aut Messing Russell Department of Entomology/KauaiAgricultural Research Center, University of Hawaii, 7370-A Kuamoo Road, Kapaa, 96746, Kauai, HI, USA aut BioControl Kluwer Academic Publishers 45/1(2000-03-01), 113-125 1386-6141 45:1<113 2000 45 10526 https://doi.org/10.1023/A:1009944520353 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1009944520353 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Duan Jian Department of Entomology/KauaiAgricultural Research Center, University of Hawaii, 7370-A Kuamoo Road, Kapaa, 96746, Kauai, HI, USA aut NATIONALLICENCE 700 1- Messing Russell Department of Entomology/KauaiAgricultural Research Center, University of Hawaii, 7370-A Kuamoo Road, Kapaa, 96746, Kauai, HI, USA aut NATIONALLICENCE 773 0- BioControl Kluwer Academic Publishers 45/1(2000-03-01), 113-125 1386-6141 45:1<113 2000 45 10526 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer