Effect of temperature on immature development and longevity of two introduced opiine parasitoids on Bactrocera invadens

dc.contributor.authorAppiah, E.F.
dc.contributor.authorEkesi, S.
dc.contributor.authorSalifu, D.
dc.contributor.authorAfreh-Nuamah, K.
dc.contributor.authorObeng-Ofori, D.
dc.contributor.authorKhamis, F.
dc.contributor.authorMohamed, S.A.
dc.date.accessioned2018-12-10T10:29:57Z
dc.date.available2018-12-10T10:29:57Z
dc.date.issued2013-09
dc.description.abstractTemperature-dependent development, parasitism and longevity of the braconid parasitoids, Fopius arisanus Sonan and Diachasmimorpha longicaudata Ashmed on Bactorcera invadens Drew Tsuruta & White, was evaluated across five constant temperatures (15, 20, 25, 30 and 35°C). Developmental rate decreased linearly with increasing temperature for both the parasitoid species. Linear and Brière-2 nonlinear models were used to determine the lower temperature threshold at which the developmental rate (1/D) approached zero. For F. arisanus, lower thresholds to complete development estimated with the linear and nonlinear models were 10.1 and 6.9°C, respectively. The total degree-days (DD) required to complete the development estimated by the linear model for F. arisanus was 360. In D. longicaudata, the linear and nonlinear models estimated lower thresholds of 10.4 and 7.3°C, respectively, and the total DD estimated was 282. In F. arisanus, percentage parasitism differed significantly across all temperatures tested and was highest at 25°C (71.1 ± 2.5) and lowest at 15°C (46.4 ± 1.4). Parasitoid progeny sex ratio was female biased at all temperatures except at 20°C. In D. longicaudata, percentage parasitism was highest at 20°C (52.2 ± 4.0) and lowest at 15°C (27.7 ± 2.5). Parasitoid progeny sex ratio was female biased and similar for all temperatures. Adult longevity of both parasitoids was shortest at 35°C and longest at 15°C, and females lived significantly longer than males at all temperatures tested. Our findings provide some guidance for future mass rearing and field releases of the two parasitoids for the management of B. invadens in Africa. © 2013 Blackwell Verlag, GmbH.en_US
dc.identifier.otherhttps://doi.org/10.1111/jen.12036
dc.identifier.otherVolume 137, Issue 8, Pages 571-579
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/26281
dc.language.isoenen_US
dc.publisherJournal of Applied Entomologyen_US
dc.subjectBactorcera invadensen_US
dc.subjectDiachasmimorpha longicaudataen_US
dc.subjectField releasesen_US
dc.subjectFopius arisanusen_US
dc.subjectImmature developmenten_US
dc.subjectMass rearingen_US
dc.titleEffect of temperature on immature development and longevity of two introduced opiine parasitoids on Bactrocera invadensen_US
dc.typeArticleen_US

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