Seasonal abundance of Plutella xylostella (Lepidoptera: Plutellidae) and diversity of its parasitoids along altitudinal gradients of the eastern Afromontane

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cg.authorship.typesCGIAR and developing country institute
cg.contributor.affiliationInternational Centre of Insect Physiology and Ecology
cg.contributor.affiliationUniversity of Nairobi
cg.contributor.affiliationTropical Pesticides Research Institute, Tanzania
cg.contributor.affiliationInternational Maize and Wheat Improvement Center
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.donorMinistry of Foreign Affairs, Finland
cg.contributor.donorDepartment for International Development, United Kingdom
cg.contributor.donorSwedish International Development Cooperation Agency
cg.contributor.donorSwiss Agency for Development and Cooperation
cg.contributor.donorFederal Ministry for Economic Cooperation and Development, Germany
cg.contributor.donorGovernment of Kenya
cg.coverage.countryTanzania
cg.coverage.iso3166-alpha2TZ
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1007/s12600-019-00732-3
cg.isijournalISI Journal
cg.issn0334-2123
cg.issue3
cg.journalPhytoparasitica
cg.reviewStatusPeer Review
cg.subject.iitaPESTS OF PLANTS
cg.volume47
dc.contributor.authorNgowi, B.V.
dc.contributor.authorTonnang, Henri E.Z.
dc.contributor.authorKhamis, F.
dc.contributor.authorMwangi, E.M.
dc.contributor.authorNyambo, B.
dc.contributor.authorNdegwa, P.N.
dc.contributor.authorSubramanian, S.
dc.date.accessioned2019-08-05T13:22:49Zen
dc.date.available2019-08-05T13:22:49Zen
dc.identifier.urihttps://hdl.handle.net/10568/102432
dc.titleSeasonal abundance of Plutella xylostella (Lepidoptera: Plutellidae) and diversity of its parasitoids along altitudinal gradients of the eastern Afromontaneen
dcterms.abstractMonthly field surveys of diamondback moth (DBM), Plutella xylostella (L.) and its parasitoids were conducted to assess seasonal abundance and diversity under changing altitude. Twenty-four crucifer farms spread across three altitudinal zones of Mount Kilimanjaro and Taita hills were sampled for the insects at monthly interval from 2013 to 2014. Diamondback moth abundance differed significantly between seasons (F3, 21 = 3.883, p = 0.024) in the high zone of Taita hills. The abundance among altitudinal zones of the two transects was not significantly different (Mt. Kilimanjaro: F2, 98 = 0.415, p = 0.661; Taita hills: F2, 116 = 0.303, p = 0.739). Eight parasitoid species emerged in the laboratory from collected DBM larvae and pupae. Cotesia vestalis (Haliday) provided the most DBM parasitism in the low zone and Diadegma semiclausum (Hellen) in the medium and high zones. Parasitism by D. semiclausum increased by 32.5% between the low and medium zones (p = 0.001) of Taita hills. Diversity of parasitoid species declined considerably from the low to medium zones of Taita hills. The diversity of wild crucifer species increased with altitude but was twice as diverse in the high zone of Mt. Kilimanjaro than the high zone of Taita hills. Ecological complexity of the cropping system contributed greatly to a wider parasitoid diversity along Mt. Kilimanjaro. The introduced C. vestalis has successfully established in East Africa and adapted to the warmer areas in the low altitudes.en
dcterms.accessRightsLimited Access
dcterms.audienceScientists
dcterms.available2019-06-25
dcterms.bibliographicCitationNgowi, B.V., Tonnang, H.E.Z., Khamis, F., Mwangi, E.M., Nyambo, B., Ndegwa, P.N. & Subramanian, S. (2019). Seasonal abundance of Plutella xylostella (Lepidoptera: Plutellidae) and diversity of its parasitoids along altitudinal gradients of the eastern Afromontane. Phytoparasitica, 47(3), 375–391.en
dcterms.extent375-391
dcterms.issued2019-07
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherSpringer
dcterms.subjectdiadegma semiclausumen
dcterms.subjectplutella xylostellaen
dcterms.subjectparasitoidsen
dcterms.subjecttanzaniaen
dcterms.typeJournal Article

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