Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya

Fall armyworm (FAW), one of the most important pests of maize in Latin America, suddenly appeared in Africa in 2016 and spread rapidly. Estimates of crop losses due to FAW are essential in order to compare the impact of these losses with the cost of controlling FAW and advise appropriate technology...

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Autores: De Groote, H., Kimenju, S.C., Munyua, B.G., Palmas, S., Kassie, M., Bruce, A.Y.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:México
Recursos:Centro Internacional de Mejoramiento de Maíz y Trigo
Repositorio:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
OAI Identifier:oai:repository.cimmyt.org:10883/20623
Acesso em linha:https://hdl.handle.net/10883/20623
Access Level:acceso abierto
Palavra-chave:MAIZE
SPODOPTERA FRUGIPERDA
CROP LOSSES
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spelling Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of KenyaDe Groote, H.Kimenju, S.C.Munyua, B.G.Palmas, S.Kassie, M.Bruce, A.Y.MAIZESPODOPTERA FRUGIPERDACROP LOSSESFall armyworm (FAW), one of the most important pests of maize in Latin America, suddenly appeared in Africa in 2016 and spread rapidly. Estimates of crop losses due to FAW are essential in order to compare the impact of these losses with the cost of controlling FAW and advise appropriate technology dissemination and policy. In this study, therefore, crop losses due to FAW in 2017 and 2018 were estimated in all the maize production areas of Kenya. Data were collected during June and July 2018 through 121 group discussions with 1439 farmers, separately with men (697) and women (742), in communities that were randomly selected to represent the major maize growing areas. The results showed that most participants (82%) could correctly identify the FAW from pictures. By 2016, FAW was observed by more than half of the communities (53%), with most of the other half first observing FAW in 2017. The proportion of farmers affected by FAW substantially increased, from the long rains of 2017 (63%) to the long rains of 2018 (83%), and in all zones except for the high tropics and moist mid-altitudes. However, the percentage of loss experienced by affected farmers decreased slightly, from 54% in 2017 to 42% in 2018. In 2017, the low- and medium-potential maize-production areas were the most affected, with losses of >50%, with high-potential areas facing losses of about 30%, resulting in a total loss of 37% for the whole country. In the main 2018 season, losses in the low- and medium-potential areas were less ? about 20%, but the high-potential areas were now more affected, leading to a total estimate of 33%. We conclude that FAW has suddenly become a major pest in Kenya, causing losses of about a third of the annual maize production, estimated at about 1 million tonnes.The datasets related with this article are only referentialElsevier2020-01-28T01:15:17Z2020-01-28T01:15:17Z2020Published Versioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePDFapplication/pdf0167-8809 (Print)https://hdl.handle.net/10883/2062310.1016/j.agee.2019.106804292Agriculture, Ecosystems and Environment106804reponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYTinstname:Centro Internacional de Mejoramiento de Maíz y Trigoinstacron:CIMMYTEnglishhttps://ars.els-cdn.com/content/image/1-s2.0-S0167880919304219-mmc1.docxhttps://ars.els-cdn.com/content/image/1-s2.0-S0167880919304219-mmc2.docxhttps://ars.els-cdn.com/content/image/1-s2.0-S0167880919304219-mmc3.docxKENYAAmsterdam (Netherlands)CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose.Open Accessinfo:eu-repo/semantics/openAccessoai:repository.cimmyt.org:10883/206232024-10-11T19:57:51Z
dc.title.none.fl_str_mv Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
title Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
spellingShingle Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
De Groote, H.
MAIZE
SPODOPTERA FRUGIPERDA
CROP LOSSES
title_short Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
title_full Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
title_fullStr Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
title_full_unstemmed Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
title_sort Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya
dc.creator.none.fl_str_mv De Groote, H.
Kimenju, S.C.
Munyua, B.G.
Palmas, S.
Kassie, M.
Bruce, A.Y.
author De Groote, H.
author_facet De Groote, H.
Kimenju, S.C.
Munyua, B.G.
Palmas, S.
Kassie, M.
Bruce, A.Y.
author_role author
author2 Kimenju, S.C.
Munyua, B.G.
Palmas, S.
Kassie, M.
Bruce, A.Y.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv MAIZE
SPODOPTERA FRUGIPERDA
CROP LOSSES
topic MAIZE
SPODOPTERA FRUGIPERDA
CROP LOSSES
description Fall armyworm (FAW), one of the most important pests of maize in Latin America, suddenly appeared in Africa in 2016 and spread rapidly. Estimates of crop losses due to FAW are essential in order to compare the impact of these losses with the cost of controlling FAW and advise appropriate technology dissemination and policy. In this study, therefore, crop losses due to FAW in 2017 and 2018 were estimated in all the maize production areas of Kenya. Data were collected during June and July 2018 through 121 group discussions with 1439 farmers, separately with men (697) and women (742), in communities that were randomly selected to represent the major maize growing areas. The results showed that most participants (82%) could correctly identify the FAW from pictures. By 2016, FAW was observed by more than half of the communities (53%), with most of the other half first observing FAW in 2017. The proportion of farmers affected by FAW substantially increased, from the long rains of 2017 (63%) to the long rains of 2018 (83%), and in all zones except for the high tropics and moist mid-altitudes. However, the percentage of loss experienced by affected farmers decreased slightly, from 54% in 2017 to 42% in 2018. In 2017, the low- and medium-potential maize-production areas were the most affected, with losses of >50%, with high-potential areas facing losses of about 30%, resulting in a total loss of 37% for the whole country. In the main 2018 season, losses in the low- and medium-potential areas were less ? about 20%, but the high-potential areas were now more affected, leading to a total estimate of 33%. We conclude that FAW has suddenly become a major pest in Kenya, causing losses of about a third of the annual maize production, estimated at about 1 million tonnes.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-28T01:15:17Z
2020-01-28T01:15:17Z
2020
dc.type.none.fl_str_mv Published Version
info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv 0167-8809 (Print)
https://hdl.handle.net/10883/20623
10.1016/j.agee.2019.106804
identifier_str_mv 0167-8809 (Print)
10.1016/j.agee.2019.106804
url https://hdl.handle.net/10883/20623
dc.language.none.fl_str_mv English
language_invalid_str_mv English
dc.relation.none.fl_str_mv https://ars.els-cdn.com/content/image/1-s2.0-S0167880919304219-mmc1.docx
https://ars.els-cdn.com/content/image/1-s2.0-S0167880919304219-mmc2.docx
https://ars.els-cdn.com/content/image/1-s2.0-S0167880919304219-mmc3.docx
dc.rights.none.fl_str_mv Open Access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Open Access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv PDF
application/pdf
dc.coverage.none.fl_str_mv KENYA
Amsterdam (Netherlands)
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv 292
Agriculture, Ecosystems and Environment
106804
reponame:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
instname:Centro Internacional de Mejoramiento de Maíz y Trigo
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