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Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum

Biological control is one of the best options for the sustainable management of the invasive maize pest Spodoptera frugiperda in Africa. However, there is limited knowledge of the efficacy of native natural enemies of S. frugiperda and their potential use in integrated pest management. The endoparas...

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Autores principales: Agboyi, Lakpo Koku, Mensah, Samuel Adjei, Clottey, Victor Attuquaye, Beseh, Patrick, Glikpo, Raymond, Rwomushana, Ivan, Day, Roger, Kenis, Marc
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6920753/
https://www.ncbi.nlm.nih.gov/pubmed/31744045
http://dx.doi.org/10.3390/insects10110410
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author Agboyi, Lakpo Koku
Mensah, Samuel Adjei
Clottey, Victor Attuquaye
Beseh, Patrick
Glikpo, Raymond
Rwomushana, Ivan
Day, Roger
Kenis, Marc
author_facet Agboyi, Lakpo Koku
Mensah, Samuel Adjei
Clottey, Victor Attuquaye
Beseh, Patrick
Glikpo, Raymond
Rwomushana, Ivan
Day, Roger
Kenis, Marc
author_sort Agboyi, Lakpo Koku
collection PubMed
description Biological control is one of the best options for the sustainable management of the invasive maize pest Spodoptera frugiperda in Africa. However, there is limited knowledge of the efficacy of native natural enemies of S. frugiperda and their potential use in integrated pest management. The endoparasitoid wasp Coccygidium luteum is one of the natural enemies of S. frugiperda in Africa. This study assessed, under laboratory conditions, the effect of C. luteum on the leaf consumption rate of its host. Fifty first instar S. frugiperda larvae were exposed to C. luteum for oviposition and the maize leaf consumption rate of parasitized larvae was assessed and compared to 50 unparasitized larvae from the same cohort. Coccygidium luteum completed a generation, from egg to adult emergence, in 16.7 days. The leaf consumption rate of parasitized S. frugiperda larvae declined gradually compared to unparasitized larvae and the overall consumption reduction by parasitized S. frugiperda larvae was 89%. Our findings show that C. luteum could reduce damage caused by S. frugiperda to maize farms but, prior to its use in biological control programmes, further studies are needed to assess potential parasitism rates in field conditions and develop a cost-effective mass production system.
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spelling pubmed-69207532019-12-24 Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum Agboyi, Lakpo Koku Mensah, Samuel Adjei Clottey, Victor Attuquaye Beseh, Patrick Glikpo, Raymond Rwomushana, Ivan Day, Roger Kenis, Marc Insects Article Biological control is one of the best options for the sustainable management of the invasive maize pest Spodoptera frugiperda in Africa. However, there is limited knowledge of the efficacy of native natural enemies of S. frugiperda and their potential use in integrated pest management. The endoparasitoid wasp Coccygidium luteum is one of the natural enemies of S. frugiperda in Africa. This study assessed, under laboratory conditions, the effect of C. luteum on the leaf consumption rate of its host. Fifty first instar S. frugiperda larvae were exposed to C. luteum for oviposition and the maize leaf consumption rate of parasitized larvae was assessed and compared to 50 unparasitized larvae from the same cohort. Coccygidium luteum completed a generation, from egg to adult emergence, in 16.7 days. The leaf consumption rate of parasitized S. frugiperda larvae declined gradually compared to unparasitized larvae and the overall consumption reduction by parasitized S. frugiperda larvae was 89%. Our findings show that C. luteum could reduce damage caused by S. frugiperda to maize farms but, prior to its use in biological control programmes, further studies are needed to assess potential parasitism rates in field conditions and develop a cost-effective mass production system. MDPI 2019-11-16 /pmc/articles/PMC6920753/ /pubmed/31744045 http://dx.doi.org/10.3390/insects10110410 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Agboyi, Lakpo Koku
Mensah, Samuel Adjei
Clottey, Victor Attuquaye
Beseh, Patrick
Glikpo, Raymond
Rwomushana, Ivan
Day, Roger
Kenis, Marc
Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum
title Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum
title_full Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum
title_fullStr Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum
title_full_unstemmed Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum
title_short Evidence of Leaf Consumption Rate Decrease in Fall Armyworm, Spodoptera frugiperda, Larvae Parasitized by Coccygidium luteum
title_sort evidence of leaf consumption rate decrease in fall armyworm, spodoptera frugiperda, larvae parasitized by coccygidium luteum
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6920753/
https://www.ncbi.nlm.nih.gov/pubmed/31744045
http://dx.doi.org/10.3390/insects10110410
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