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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: Niassy, Saliou, Agbodzavu, Mawufe Komi, Kimathi, Emily, Mutune, Berita, Abdel-Rahman, El Fatih M., Salifu, Daisy, Hailu, Girma, Belayneh, Yeneneh T., Felege, Elias, Tonnang, Henri E. Z., Ekesi, Sunday, Subramanian, Sevgan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8195398/
https://www.ncbi.nlm.nih.gov/pubmed/34115755
http://dx.doi.org/10.1371/journal.pone.0249042
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author Niassy, Saliou
Agbodzavu, Mawufe Komi
Kimathi, Emily
Mutune, Berita
Abdel-Rahman, El Fatih M.
Salifu, Daisy
Hailu, Girma
Belayneh, Yeneneh T.
Felege, Elias
Tonnang, Henri E. Z.
Ekesi, Sunday
Subramanian, Sevgan
author_facet Niassy, Saliou
Agbodzavu, Mawufe Komi
Kimathi, Emily
Mutune, Berita
Abdel-Rahman, El Fatih M.
Salifu, Daisy
Hailu, Girma
Belayneh, Yeneneh T.
Felege, Elias
Tonnang, Henri E. Z.
Ekesi, Sunday
Subramanian, Sevgan
author_sort Niassy, Saliou
collection PubMed
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.
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spelling pubmed-81953982021-06-21 Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa Niassy, Saliou Agbodzavu, Mawufe Komi Kimathi, Emily Mutune, Berita Abdel-Rahman, El Fatih M. Salifu, Daisy Hailu, Girma Belayneh, Yeneneh T. Felege, Elias Tonnang, Henri E. Z. Ekesi, Sunday Subramanian, Sevgan PLoS One Research Article 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. Public Library of Science 2021-06-11 /pmc/articles/PMC8195398/ /pubmed/34115755 http://dx.doi.org/10.1371/journal.pone.0249042 Text en https://creativecommons.org/publicdomain/zero/1.0/This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 (https://creativecommons.org/publicdomain/zero/1.0/) public domain dedication.
spellingShingle Research Article
Niassy, Saliou
Agbodzavu, Mawufe Komi
Kimathi, Emily
Mutune, Berita
Abdel-Rahman, El Fatih M.
Salifu, Daisy
Hailu, Girma
Belayneh, Yeneneh T.
Felege, Elias
Tonnang, Henri E. Z.
Ekesi, Sunday
Subramanian, Sevgan
Bioecology of fall armyworm Spodoptera frugiperda (J. E. Smith), its management and potential patterns of seasonal spread in Africa
title 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_short 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
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8195398/
https://www.ncbi.nlm.nih.gov/pubmed/34115755
http://dx.doi.org/10.1371/journal.pone.0249042
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