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dc.contributor.authorSouna, D.A.
dc.contributor.authorBokonon-Ganta, A.
dc.contributor.authorRavallec, M.
dc.contributor.authorAlizannon, M.
dc.contributor.authorSrinivasan, R.
dc.contributor.authorPittendrigh, B.R.
dc.contributor.authorVolkoff, A.N.
dc.contributor.authorTamo, M.
dc.date.accessioned2021-06-10T07:38:50Z
dc.date.available2021-06-10T07:38:50Z
dc.date.issued2021
dc.identifier.citationSouna, D.A., Bokonon-Ganta, A.H., Ravallec, M., Alizannon, M., Srinivasan, R., Pittendrigh, B. R., ... & Tamò, M. (2021). Progeny fitness determines the performance of the parasitoid Therophilus javanus, a prospective biocontrol agent against the legume pod borer. Scientific Reports, 11(1), 1-10.
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7131
dc.description.abstractTherophilus javanus (Bhat & Gupta) is an exotic larval endoparasitoid newly imported from Asia into Africa as a classical biological control agent against the pod borer Maruca vitrata (Fabricius). The parasitoid preference for the five larval instars of M. vitrata and their influence on progeny sex ratio were assessed together with the impact of larval host age at the time of oviposition on development time, mother longevity and offspring production. In a choice situation, female parasitoids preferred to oviposit in the first three larval instars. The development of immature stages of the parasitoid was observed inside three-day-old hosts, whereby the first two larval instars of T. javanus completed their development as endoparasites and the third larval instar as ectoparasite. The development time was faster when first larval instars (two- and three-day-old) of the host caterpillars were parasitized compared to second larval instar (four-day-old). The highest proportion of daughters (0.51) was observed when females were provided with four-day-old hosts. The lowest intrinsic rate of increase (r) (0.21 ± 0.01), the lowest rate of increase (λ) (1.23 ± 0.01), and the lowest net reproductive rate (Ro) (35.93 ± 6.51) were recorded on four-day-old hosts. These results are discussed in the light of optimizing mass rearing and release strategies.
dc.description.sponsorshipCGIAR Research Program on Grain Legumes and Dryland Cereals
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent1-10
dc.language.isoen
dc.subjectBiological Control
dc.subjectBiological Control Agents
dc.subjectMaruca Vitrata
dc.subjectCowpeas
dc.subjectPlant Diseases
dc.subjectPlant Production
dc.subjectPlant Health
dc.subjectProgeny
dc.subjectLegumes
dc.titleProgeny fitness determines the performance of the parasitoid Therophilus javanus, a prospective biocontrol agent against the legume pod borer
dc.typeJournal Article
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Abomey-Calavi
cg.contributor.affiliationUniversity of Montpellier
cg.contributor.affiliationWorld Vegetable Center
cg.contributor.affiliationMichigan State University
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryBenin (Dahomey)
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidSOUNA:2021
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectCowpea
cg.iitasubjectDisease Control
cg.iitasubjectGrain Legumes
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalScientific Reports
cg.notesOpen Access Journal; Published online: 26 Apr 2021
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1038/s41598-021-88644-3
cg.iitaauthor.identifierManuele Tamò: 0000-0002-5863-7421
cg.futureupdate.requiredNo
cg.identifier.issue1
cg.identifier.volume11
cg.contributor.acknowledgementsWe thank the Cooperation and Cultural Action Service (SCAC) of the French Embassy in Cotonou for partial support of DAS (N 898392E). Co-funding was also provided by the CGIAR Research Program on Grain Legumes and Dryland Cereals (GLDC) (DAS, MT and BRP), and the Bill and Melinda Gates Foundation (BMGF) for partial co-funding of the study (OPP1082463 to MT and BRP) and Open Access publication support. We also thank Georg Goergen for the habitus illustration of T. javanus, and Basile Dato for technical assistance with cowpea field installation at the International Institute of Tropical Agriculture (IITA), Benin Station.


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