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Banana weevil, Cosmopolites sordidus (Germar), ovipositional preferences, timing of attack and larval survivorship in a mixed cultivar trial in Uganda

dc.contributor.authorAbera, A.
dc.contributor.authorKyamanywa, S.
dc.contributor.authorKaramura, E.
dc.date.accessioned2019-12-04T11:21:08Z
dc.date.available2019-12-04T11:21:08Z
dc.date.issued2000
dc.identifier.citationAbera, A., Kyamanaywa, S. & Karamura, E. (1996, October). Banana weevil, Cosmopolites sordidus (Germar), ovipositional preferences, timing of attack and larval survivorship in a mixed cultivar trial in Uganda. Acta Horticulturae, 540, 487-495.
dc.identifier.issn0567-7572
dc.identifier.urihttps://hdl.handle.net/20.500.12478/3678
dc.description.abstractHost location, acceptance and larval success were studied in a mixed cultivar trial consisting of three East African cooking bananas, two East African beer banana and Kayinja (an exotic cultivar used for beer making). Weevil damage to the endemic cultivars was 5 to 25 times higher than that of Kayinja. Capture of weevils in pseudostem traps at the base of banana mats was highest for Kayinja, while egg density on Kayinja was similar to that of four endemic cultivars. Therefore, host location and acceptance do not appear to be factors in host plant resistance. In contrast, larval survivorship indices were 10 to 23 times higher in endemic cultivars than in Kayinja suggesting that larval success may be an important factor in resistance to banana weevils. Timing of attack was similar among cultivars. Oviposition occurred throughout the banana cycle with egg density increasing with plant age. These data provide a possible explanation of differences in weevil attack found among banana cultivars in Uganda.
dc.language.isoen
dc.subjectBanana Weevils
dc.subjectKayinja
dc.subjectEast African
dc.subjectCooking Bananas
dc.subjectCultivars
dc.subjectOvipositional
dc.subjectTiming Of Attack
dc.subjectLarval Survivorship
dc.titleBanana weevil, Cosmopolites sordidus (Germar), ovipositional preferences, timing of attack and larval survivorship in a mixed cultivar trial in Uganda
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationMakerere University
cg.contributor.affiliationNational Agricultural Research Organisation, Uganda
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryUganda
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectBanana
cg.iitasubjectFood Security
cg.iitasubjectPests Of Plant
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Breeding
cg.iitasubjectDiseases Control
cg.iitasubjectPlant Production
cg.iitasubjectHandling, Transport, Storage And Protection Of Agricultural Products
cg.iitasubjectFarm Management
cg.iitasubjectMarkets
cg.iitasubjectNutrition
cg.iitasubjectSmallholder Farmers
cg.accessibilitystatusLimited Access
local.dspaceid95833


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