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Biological parameters of Thripobius semiluteus Bouček (Hym., Eulophidae), a larval endoparasitoid of Heliothrips haemorrhoidalis (Bouché) (Thysan., Thripidae)

TitleBiological parameters of Thripobius semiluteus Bouček (Hym., Eulophidae), a larval endoparasitoid of Heliothrips haemorrhoidalis (Bouché) (Thysan., Thripidae)
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2005
AuthorsBernardo, U., Viggiani G., and Sasso R
JournalJournal of Applied Entomology
Volume129
Pagination250-257
ISSN09312048
Keywordsbiological control, demography, developmental biology, Eastern Hemisphere, Eulophidae, Eurasia, Europe, Fecundity, Heliothrips, Heliothrips haemorrhoidalis, host-parasitoid interaction, Italy, Rearing, Southern Europe, Thripidae, Thripobius semiluteus, Vespidae, Viburnum, Viburnum tinus, World
Abstract

The endoparasitoid Thripobius semiluteus Bouček was recently introduced to Italy from Israel for the biological control of Heliothrips haemorrhoidalis (Bouché). In this study, some aspects of the biology of T. semiluteus were determined in the laboratory. Developmental time (egg to adult), potential fecundity, realized fecundity, progeny, daily rate of deposition of eggs and several demographic growth parameters were evaluated. Studies of the longevity of fed and starved adults at seven temperatures (3, 10, 15, 20, 23, 25 and 30 ± 1°C) showed that fed T. semiluteus lived longest at 15°C (36.45 days) and shortest at 3°C (1.45 days). Longevity was reduced significantly at higher and lower temperatures than 15°C and when honey was not provided. Development time was measured at six temperatures. Pupae did not complete development at 10°C. The lower theoretical temperature threshold was 9.0°C; the optimum developmental temperature and the upper lethal threshold were 28.0°C and 34.1°C respectively. The most rapid development was found at 30°C, but wasps suffered significantly higher mortality at this temperature than at other temperatures. Ovigeny index showed that T. semiluteus is synovigenic, with a mean realized fecundity of 78.8 eggs per female. The mean progeny was 68.2 adults per female on fed adults. © 2005 Blackwell Verlag.

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URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-20444493614&doi=10.1111%2fj.1439-0418.2005.00957.x&partnerID=40&md5=1a98b7dec8c6438eea9af61b68179133
DOI10.1111/j.1439-0418.2005.00957.x
Citation KeyBernardo2005250