|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 11 van 17 gevonden artikelen
| Titel: |
Interactions Between Augmentatively Released Diachasmimorpha longicaudata (Hymenoptera: Braconidae) and a Complex of Opiine Parasitoids in a Commercial Guava Orchard |
| Auteur: |
John, Mary F. Purcell Herr, C. Messing, R. H. Wong, T. T. Y. |
| Verschenen in: |
Biocontrol science and technology |
| Paginering: | Jaargang 8 (1998) nr. 1 pagina's 139-151 |
| Jaar: |
1998-03-01 |
| Inhoud: |
A study was conducted to determine the eVect of augmentatively releasing mass-reared Diachasmimorpha longicaudata (Ashmead) on a complex of four co-existing parasitoid species which attack the oriental fruit fly, Bactrocera dorsalis (Hendel). The species belonging to this complex are the egg-pupal parasitoid, Biosteres arisanus (Sonan) and the larval-pupal parasitoids, Biosteres vandenboschi (Fullaway), D. longicaudata and Psyttalia incisi (Silvestri). The study site was a 160-ha commercial orchard of common guava, Psidium guajava L. (cv. Beaumont) located on Kauai island. One year before the release of D. longicaudata, B. arisanus was the dominant parasitoid, accounting for 91.1% of the parasitoids recovered. Despite releases of large numbers of D. longicaudata (600000-800 000 parasitized puparia/ week), B. arisanus continued to account for 90% of all parasitoids recovered from the oriental fruit fly. The larval parasitoid P. incisi may have been reduced as a result of D. longicaudata releases. D. longicaudata was significantly more abundant in over-ripe and rotting fruits compared with freshly fallen fruits. However, no increase in the overall percentage parasitism was observed in any fruit ripeness category. B. arisanus was eY cient at colonizing hosts when fruit fly densities and fruit abundance were relatively low in the orchard. The implications for future augmentative release programmes with D. longicaudata are discussed. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 11 van 17 gevonden artikelen
| << vorige | volgende >> |