Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.

Fall armyworm, Spodoptera frugiperda (J. E. Smith) has rapidly spread in sub-Saharan Africa (SSA) and has emerged as a major pest of maize and sorghum in the continent. For effective monitoring and a better understanding of the bioecology and management of this pest, a Community-based Fall Armyworm...

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Autores principales:	Saliou Niassy, Mawufe Komi Agbodzavu, Emily Kimathi, Berita Mutune, El Fatih M Abdel-Rahman, Daisy Salifu, Girma Hailu, Yeneneh T Belayneh, Elias Felege, Henri E Z Tonnang, Sunday Ekesi, Sevgan Subramanian
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/73dc2f109a094a4e90b26f87aa3a9c22
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spelling	oai:doaj.org-article:73dc2f109a094a4e90b26f87aa3a9c222021-11-25T06:23:34ZBioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.1932-620310.1371/journal.pone.0249042https://doaj.org/article/73dc2f109a094a4e90b26f87aa3a9c222021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0249042https://doaj.org/toc/1932-6203Fall armyworm, Spodoptera frugiperda (J. E. Smith) has rapidly spread in sub-Saharan Africa (SSA) and has emerged as a major pest of maize and sorghum in the continent. For effective monitoring and a better understanding of the bioecology and management of this pest, a Community-based Fall Armyworm Monitoring, Forecasting, Early Warning and Management (CBFAMFEW) initiative was implemented in six eastern African countries (Ethiopia, Kenya, Tanzania, Uganda, Rwanda and Burundi). Over 650 Community Focal Persons (CFPs) who received training through the project were involved in data collection on adult moths, crop phenology, cropping systems, FAW management practices and other variables. Data collection was performed using Fall Armyworm Monitoring and Early Warning System (FAMEWS), a mobile application developed by the Food and Agricultural Organization (FAO) of the United Nations. Data collected from the CBFAMFEW initiative in East Africa and other FAW monitoring efforts in Africa were merged and analysed to determine the factors that are related to FAW population dynamics. We used the negative binomial models to test for effect of main crops type, cropping systems and crop phenology on abundance of FAW. We also analysed the effect of rainfall and the spatial and temporal distribution of FAW populations. The study showed variability across the region in terms of the proportion of main crops, cropping systems, diversity of crops used in rotation, and control methods that impact on trap and larval counts. Intercropping and crop rotation had incident rate 2-times and 3-times higher relative to seasonal cropping, respectively. The abundance of FAW adult and larval infestation significantly varied with crop phenology, with infestation being high at the vegetative and reproductive stages of the crop, and low at maturity stage. This study provides an understanding on FAW bioecology, which could be vital in guiding the deployment of FAW-IPM tools in specific locations and at a specific crop developmental stage. The outcomes demonstrate the relevance of community-based crop pest monitoring for awareness creation among smallholder farmers in SSA.Saliou NiassyMawufe Komi AgbodzavuEmily KimathiBerita MutuneEl Fatih M Abdel-RahmanDaisy SalifuGirma HailuYeneneh T BelaynehElias FelegeHenri E Z TonnangSunday EkesiSevgan SubramanianPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0249042 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Saliou Niassy Mawufe Komi Agbodzavu Emily Kimathi Berita Mutune El Fatih M Abdel-Rahman Daisy Salifu Girma Hailu Yeneneh T Belayneh Elias Felege Henri E Z Tonnang Sunday Ekesi Sevgan Subramanian Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.
description	Fall armyworm, Spodoptera frugiperda (J. E. Smith) has rapidly spread in sub-Saharan Africa (SSA) and has emerged as a major pest of maize and sorghum in the continent. For effective monitoring and a better understanding of the bioecology and management of this pest, a Community-based Fall Armyworm Monitoring, Forecasting, Early Warning and Management (CBFAMFEW) initiative was implemented in six eastern African countries (Ethiopia, Kenya, Tanzania, Uganda, Rwanda and Burundi). Over 650 Community Focal Persons (CFPs) who received training through the project were involved in data collection on adult moths, crop phenology, cropping systems, FAW management practices and other variables. Data collection was performed using Fall Armyworm Monitoring and Early Warning System (FAMEWS), a mobile application developed by the Food and Agricultural Organization (FAO) of the United Nations. Data collected from the CBFAMFEW initiative in East Africa and other FAW monitoring efforts in Africa were merged and analysed to determine the factors that are related to FAW population dynamics. We used the negative binomial models to test for effect of main crops type, cropping systems and crop phenology on abundance of FAW. We also analysed the effect of rainfall and the spatial and temporal distribution of FAW populations. The study showed variability across the region in terms of the proportion of main crops, cropping systems, diversity of crops used in rotation, and control methods that impact on trap and larval counts. Intercropping and crop rotation had incident rate 2-times and 3-times higher relative to seasonal cropping, respectively. The abundance of FAW adult and larval infestation significantly varied with crop phenology, with infestation being high at the vegetative and reproductive stages of the crop, and low at maturity stage. This study provides an understanding on FAW bioecology, which could be vital in guiding the deployment of FAW-IPM tools in specific locations and at a specific crop developmental stage. The outcomes demonstrate the relevance of community-based crop pest monitoring for awareness creation among smallholder farmers in SSA.
format	article
author	Saliou Niassy Mawufe Komi Agbodzavu Emily Kimathi Berita Mutune El Fatih M Abdel-Rahman Daisy Salifu Girma Hailu Yeneneh T Belayneh Elias Felege Henri E Z Tonnang Sunday Ekesi Sevgan Subramanian
author_facet	Saliou Niassy Mawufe Komi Agbodzavu Emily Kimathi Berita Mutune El Fatih M Abdel-Rahman Daisy Salifu Girma Hailu Yeneneh T Belayneh Elias Felege Henri E Z Tonnang Sunday Ekesi Sevgan Subramanian
author_sort	Saliou Niassy
title	Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.
title_short	Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.
title_full	Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.
title_fullStr	Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.
title_full_unstemmed	Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.
title_sort	bioecology of fall armyworm spodoptera frugiperda (j. e. smith), its management and potential patterns of seasonal spread in africa.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/73dc2f109a094a4e90b26f87aa3a9c22
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Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa.

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