Monitoring and modeling of field infestations and damage by the maize ear borer Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae) in Benin, West Africa

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dc.creatorSétamou, M.
dc.creatorSchulthess, F.
dc.creatorPoehling, H.
dc.creatorBorgemeister, C.
dc.date2000-06-01
dc.date2019-03-03T05:53:35Z
dc.date2019-03-03T05:53:35Z
dc.date.accessioned2026-06-27T16:06:40Z
dc.descriptionIn many countries in West Africa, the pyralid ear borer Mussidia nigrivenella Ragonot occasionally causes severe damage to pre- and postharvest maize. Between 1992 and 1995, the distribution of and damage caused by M. nigrivenella were studied in Benin using survey data and an on-station field experiment. The borer was distributed across the whole country, and at maturity an average 25% of the ears sampled in maize fields were infested. Damage levels varied with agro-ecological zones and were highest in the Guinea Savannas. However, borer-related yield losses were comparatively low. Three applications of cypermethrin over the growing season did not provide sufficient control in the on-station field experiment. A model was developed to estimate maize losses caused by M. nigrivenella, using the percentage of infested ears, which explained 93% of the variance. Extrapolation of field data indicated a 25% yield loss once a 100% infestation of maize ears was reached. For surveys in maize fields the model is a valid tool for a rapid assessment of crop losses caused by M. nigrivenella.
dc.identifierhttps://hdl.handle.net/10568/99851
dc.identifier.urihttp://hdl.handle.net/123456789/122838
dc.languageen
dc.publisherOxford University Press
dc.rightsLimited Access
dc.sourceSétamou, M., Schulthess, F., Poehling, H. & Borgemeister, C. (2000). Monitoring and modeling of field infestations and damage by the maize ear borer Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae) in Benin, West Africa. Journal of Economic Entomology, 93(3), 650-657.
dc.subjectmaize
dc.subjectecological zones
dc.subjectyields
dc.titleMonitoring and modeling of field infestations and damage by the maize ear borer Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae) in Benin, West Africa
dc.typeJournal Article

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Instituto Internacional de Agricultura Tropical (IITA)