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Pesticide resistance in Plutella xylostella (Lepidoptera: Plutellidae) populations from Togo and Benin

dc.contributor.authorAgboyi, L.K.
dc.contributor.authorKetoh, G.K.
dc.contributor.authorMartin, T.
dc.contributor.authorGlitho, I.A.
dc.contributor.authorTamo, M.
dc.date.accessioned2019-12-04T11:04:40Z
dc.date.available2019-12-04T11:04:40Z
dc.date.issued2016-12
dc.identifier.citationAgboyi, L.K., Ketoh, G.K., Martin, T., Glitho, I.A. & Tamo, M. (2016). Pesticide resistance in Plutella xylostella (Lepidoptera: Plutellidae) populations from Togo and Benin. International Journal of Tropical Insect Science, 36(4), 204-210.
dc.identifier.issn1742-7584
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1478
dc.descriptionPublished online: 17 August 2016
dc.description.abstractThe diamondback moth, Plutella xylostella (L.) is the major insect pest of cabbage crops in Togo and Benin. For control, farmers very often resort to spraying chemical insecticides at high dosages with frequent applications. Bioassays were carried out on three populations of P. xylostella, two from Togo (Kara and Dapaong) and one from Benin (Cotonou), to assess their level of susceptibility to currently used insecticides. A reference strain of P. xylostella from Matuu in Kenya was used as a control. In the laboratory, three insecticide representatives of different chemical families (deltamethrin, chlorpyrifos ethyl and spinosad) were assayed against third instar larvae of P. xylostella. Results revealed that P. xylostella populations from Dapaong, Kara and Cotonou were more resistant to deltamethrin (13 to 59-fold at LC50 level, 149 to 1772-fold at LC90 level) and chlorpyrifos ethyl (5 to 15-fold at LC50 level, 9 to 885-fold at LC90 level) than the reference strain. Spinosad was more toxic to P. xylostella populations than the other insecticides with LC50 and LC90 values less than 1 μg/ml and 15 μg/ml, respectively. However, the population from Cotonou appeared significantly more resistant to spinosad compared to the reference strain. These results are discussed in the light of developing an integrated pest management strategy for reducing the selection pressure of spinosad.
dc.description.sponsorshipOrskov Foundation
dc.format.extent(204-210)
dc.language.isoen
dc.subjectIntegrated Pest Management
dc.subjectInsecticide
dc.subjectDeltamethrin
dc.subjectTogo
dc.subjectDiamondback Moth
dc.subjectChemical Insecticide
dc.subjectResistance
dc.titlePesticide resistance in Plutella xylostella (Lepidoptera: Plutellidae) populations from Togo and Benin
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInstitut Togolais de Recherche Agronomique
cg.contributor.affiliationUniversité de Lomé
cg.contributor.affiliationCentre de Coopération Internationale en Recherche Agronomique pour le Développement
cg.contributor.affiliationInternational Centre of Insect Physiology and Ecology
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.regionWest Africa
cg.coverage.countryBenin
cg.coverage.countryKenya
cg.coverage.countryTogo
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectDisease Control
cg.iitasubjectPests Of Plants
cg.journalInternational Journal of Tropical Insect Science
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid80592
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1017/s1742758416000138


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