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Parasitism of the whitefly Bemisia tabaci by aphelinid parasitoids on cassava across five agro-ecological zones of Cameroon

dc.contributor.authorTize, I.
dc.contributor.authorNukenine, E.
dc.contributor.authorFotso Kuate, A.
dc.contributor.authorDoumtsop, A.R.P.
dc.contributor.authorNanga, S.N.
dc.contributor.authorAjebesone, F.N.
dc.contributor.authorKulakow, P.
dc.contributor.authorKumar, P.L.
dc.contributor.authorFiaboe, K.
dc.contributor.authorHanna, R.
dc.date.accessioned2023-04-13T11:45:50Z
dc.date.available2023-04-13T11:45:50Z
dc.date.issued2023-03-28
dc.identifier.citationTize, I., Nukenine, E., Fotso Kuate, A., Doumtsop, A.R.P., Nanga, S.N., Ajebesone, F.N., ... & Hanna, R. (2023). Parasitism of the whitefly Bemisia tabaci by aphelinid parasitoids on cassava across five agro-ecological zones of Cameroon. Crop Protection, 168: 106241, 1-12.
dc.identifier.issn0261-2194
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8128
dc.description.abstractThe whitefly Bemisia tabaci (Gennadius) is the vector of cassava mosaic viruses causing cassava viral diseases, which are the most important biotic constraints of cassava production in sub-Saharan Africa (SSA). Presently, B. tabaci management in cassava fields calls for the development of an integrated approach that relies on host plant resistance and biological control. Data on B. tabaci's natural enemies, particularly parasitoids, in Central Africa are limited. Field surveys were conducted from 2015 to 2017 to identify parasitoids associated with B. tabaci in 5 Cameroon agro-ecological zones. Additionally, population dynamics studies were conducted in replicated fields experiments were conducted from 2016 to 2018 to identify cassava genotypes that can best promote B. tabaci parasitism. Two parasitoids, Encarsia sophia (Girault & Dodd) and Encarsia lutea (Masi) were found parasitizing B. tabaci nymphs with higher parasitism by E. lutea compared with E. sophia. The average parasitism rate during the survey was 33.4% for E. lutea and 8.4% for E. Sophia, regardless of AEZ. The highest parasitism rates by E. lutea (48.2% and 24.2% from field trials and surveys, respectively) were observed in the Western Highlands (AEZ 3) while parasitism by E. sophia was less than 12.4%. Four cassava genotypes (I090590, I011797, I090574, and I070593) promoted higher parasitism rates of B. tabaci by E. lutea and E sophia. The contributions of the two parasitoids and their integration with cassava genotypes for the management of B. tabaci in cassava fields are discussed.
dc.description.sponsorshipCameroon government
dc.description.sponsorshipJapan Policy and Human Resource Development Trust Fund
dc.description.sponsorshipWorld Bank
dc.description.sponsorshipCGIAR Research Program on Roots, Tubers and Bananas
dc.format.extent1-12
dc.language.isoen
dc.subjectBiological Control
dc.subjectHost Plant Resistance
dc.subjectEncarsia
dc.subjectCassava
dc.subjectCentral Africa
dc.titleParasitism of the whitefly Bemisia tabaci by aphelinid parasitoids on cassava across five agro-ecological zones of Cameroon
dc.typeJournal Article
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationUniversity of Ngaoundere
cg.contributor.affiliationUniversity of Maroua
cg.contributor.affiliationInstitute of Agricultural Research for Development, Cameroon
cg.contributor.affiliationUniversity of California
cg.coverage.regionAfrica
cg.coverage.regionCentral Africa
cg.coverage.countryCameroon
cg.coverage.hubCentral Africa Hub
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.researchthemeNatural Resource Management
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidTIZE:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectDisease Control
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalCrop Protection
cg.notesPublished online: 28 Mar 2023
cg.accessibilitystatusLimited Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCopyrighted; all rights reserved
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.1016/j.cropro.2023.106241
cg.iitaauthor.identifierFotso Kuate, A.: 0000-0002-5247-7519
cg.iitaauthor.identifierSamuel Nanga Nanga: 0000-0003-4281-8284
cg.iitaauthor.identifierPeter Kulakow: 0000-0002-7574-2645
cg.iitaauthor.identifierP. Lava Kumar: 0000-0003-4388-6510
cg.iitaauthor.identifierKomi Fiaboe: 0000-0001-5113-2159
cg.iitaauthor.identifierRachid Hanna: 0000-0002-5715-0144
cg.futureupdate.requiredNo
cg.identifier.issue106241
cg.identifier.volume168
cg.contributor.acknowledgementsWe are grateful to the Agricultural Investment and Market Development Project jointly funded by the Cameroon government, Japan Policy and Human Resource Development Trust Fund, the World Bank, and the Consultative Group on International Agricultural Research Program on Roots, Tubers, and Bananas for sponsoring this study. The authors acknowledge the administrative and logistic support from the International Institute of Tropical Agriculture (IITA) and the Agricultural Research Institute for Development Office. The authors would like to give special thanks to Dr. Andy Polaszek and Dr. Christina Fisher for the identification of both parasitoid species in the Angela Marmont Centre for UK Biodiversity, the Natural History Museum. The manuscript is part of the Ph.D. thesis dissertation of the I. Tize.


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