Assessment of impacts of fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) on maize production in Ghana

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dc.contributor.authorKoff, D.
dc.contributor.authorKyerematen, R.
dc.contributor.authorEziah, V.Y.
dc.contributor.authorOsei-Mensah, Y.O.
dc.contributor.authorAfreh-Nuamah, K.
dc.contributor.authorAboagye, E.
dc.contributor.authorOsae, M.
dc.contributor.authorMeagher, R.L.
dc.date.accessioned2022-01-18T16:31:44Z
dc.date.available2022-01-18T16:31:44Z
dc.date.issued2021
dc.descriptionResearch Articleen_US
dc.description.abstractSpodoptera frugiperda was considered an insect pest only in the Americas until its first report in African countries in 2016. In this study, farmers and agricultural officials in Ghana were interviewed on their perceptions and knowledge of the pest, on infestation and maize yield variations across years, and on management practices. Farms were inspected to determine the infestation level of 100 plants per hectare. Interviews revealed that farmers were familiar with the larval stages of this pest and noticed that the pest occurred throughout the year, but populations of S. frugiperda increased only during cropping seasons. Infestation levels reported by farmers in surveys were much lower in 2018 (30.38%) than in 2017 (80.92%). Farm inspections confirmed that infestation levels were much lower in 2018 (20.90%) than 2017 (73.70%). The belt formed by Guinea Savannah, Transitional Zone, and Semi Deciduous Forest Agro-Ecological Zones (AEZs) recorded the highest infestations while the lowest were observed from the Sudan Savannah and Tropical Rain Forest AEZs. Insecticides were the most commonly used tactic to manage populations of this new pest. Maize yields increased across Ghana between 2013 and 2015 from 1.52 to 1.73 t/ha, decreased between 2015 and 2017 to 1.55 t/ha, and increased to 1.69 t/ha in 2018. The impact of fall armyworm injury to maize production is discussed.en_US
dc.identifier.otherdoi: 10.1093/jipm/pmaa015
dc.identifier.urihttp://ugspace.ug.edu.gh/handle/123456789/37692
dc.language.isoenen_US
dc.publisherOxford University Pressen_US
dc.subjectFall armywormen_US
dc.subjectperceptionsen_US
dc.subjectinfestationen_US
dc.subjectmanagementen_US
dc.subjectmaize yielden_US
dc.titleAssessment of impacts of fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae) on maize production in Ghanaen_US
dc.typeArticleen_US

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Africa Regional Postgraduate Programme in Insect Science