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Cutting dipping application of Flupyradifurone against cassava whiteflies Bemisia tabaci and impact on its parasitism in cassava

dc.contributor.authorCaspary, R.
dc.contributor.authorWosula, E.N.
dc.contributor.authorIssa, K.A.
dc.contributor.authorAmour, M.
dc.contributor.authorLegg, J.
dc.date.accessioned2023-10-25T08:55:11Z
dc.date.available2023-10-25T08:55:11Z
dc.date.issued2023-09-30
dc.identifier.citationCaspary, R., Wosula, E.N., Issa, K.A., Amour, M. & Legg, J. (2023). Cutting dipping application of Flupyradifurone against cassava whiteflies Bemisia tabaci and impact on its parasitism in cassava. Insects, 14(10): 796, 1-15.
dc.identifier.issn2075-4450
dc.identifier.urihttps://hdl.handle.net/20.500.12478/8310
dc.description.abstractThe cassava whitefly Bemisia tabaci causes damage in cassava through the feeding and vectoring of plant viruses that cause cassava mosaic and cassava brown streak diseases. This study sought to explore the efficacy of cutting dipping in flupyradifurone for whitefly control and the impact of the mode of application on whitefly parasitism under farmer field conditions. The insecticide treatment significantly reduced adult whiteflies by 41%, nymphs by 64%, and cassava mosaic disease (CMD) incidence by 16% and increased root yield by 49%. The whitefly parasitism rate by Encarsia spp. parasitoids was 27.3 and 21.1%, while Eretmocerus spp. had 26.7 and 18.0% in control and flupyradifurone, respectively, and these differences were not significant. Electropenetrography recordings of whitefly feeding behaviour on flupyradifurone-treated plants showed significantly reduced probing activity and a delay in reaching the phloem as compared to the control. The findings from this study demonstrated that cassava cutting dipping in flupyradifurone significantly reduces whitefly numbers and cassava mosaic disease incidence, thus contributing to a significant root yield increase in cassava. Flupyradifurone applied through cutting dips does not significantly impact parasitism rates in cassava fields. Routine monitoring of parasitoids and predators in insecticide-treated versus control fields should be emphasized to determine the impact of pesticides on these beneficial non-target organisms.
dc.description.sponsorshipCGIAR Trust Fund
dc.format.extent1-15
dc.language.isoen
dc.subjectParasitoids
dc.subjectEncarsia
dc.subjectEretmocerus
dc.subjectAfrican Cassava Mosaic Virus
dc.subjectIntegrated Pest Management
dc.titleCutting dipping application of Flupyradifurone against cassava whiteflies Bemisia tabaci and impact on its parasitism in cassava
dc.typeJournal Article
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationFriedrich-Alexander-Universität Erlangen-Nürnberg
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryTanzania
cg.coverage.hubEastern Africa Hub
cg.researchthemePlant Production and Health
cg.identifier.bibtexciteidCASPARY:2023
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectAgronomy
cg.iitasubjectCassava
cg.iitasubjectFood Security
cg.iitasubjectPests of Plants
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalInsects
cg.notesOpen Access Journal
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://doi.org/10.3390/insects14100796
cg.iitaauthor.identifierEVERLYNE WOSULA: 0000-0001-5693-0889
cg.iitaauthor.identifierKhamis Issa: 0000-0002-8026-8773
cg.iitaauthor.identifierJames Legg: 0000-0003-4140-3757
cg.futureupdate.requiredNo
cg.identifier.issue10: 796
cg.identifier.volume14
cg.contributor.acknowledgementsThe authors wish to thank the Ministry of Agriculture, Tanzania, for assistance with farmer selection and the 10 farmers who availed their land for this study.


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