Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/61713 |
Resumo: | Due to the reduced host spectrum of the entomopathogenic fungus Metarhizium rileyi, its pathogenicity against different target insects must be assessed to develop biopesticides capable of controlling more than one pest species. This study aimed to evaluate the susceptibility of the pest species Chrysodeixis includens and Spodoptera frugiperda to different isolates of M. rileyi and, thus, determine a possible influence of the host of origin on the pathogenic activity of these isolates. Three isolates [CG1312 (C. includens as original host), CG381 (S. frugiperda as original host) and a new wild isolate (C. includens as original host)] were tested against larvae of C. includens and S. frugiperda, in third instar age, by treatment of surfaces with conidial suspension, under laboratory conditions. Both species were susceptible to the isolates of M. rileyi, with mortality rates of 53-58 % for C. includens and 74-84 % for S. frugiperda. The results suggest that the host of origin may not be determinant in the selection of pathogenic isolates of M. rileyi against these two pest insects. KEYWORDS: Biopesticide, soybean looper, fall armyworm, green muscardine, entomopathogenic fungus. |
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Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyiSuscetibilidade de Spodoptera frugiperda e Chrysodeixis includens (Lepidoptera: Noctuidae) a infecções causadas por Metarhizium rileyiDue to the reduced host spectrum of the entomopathogenic fungus Metarhizium rileyi, its pathogenicity against different target insects must be assessed to develop biopesticides capable of controlling more than one pest species. This study aimed to evaluate the susceptibility of the pest species Chrysodeixis includens and Spodoptera frugiperda to different isolates of M. rileyi and, thus, determine a possible influence of the host of origin on the pathogenic activity of these isolates. Three isolates [CG1312 (C. includens as original host), CG381 (S. frugiperda as original host) and a new wild isolate (C. includens as original host)] were tested against larvae of C. includens and S. frugiperda, in third instar age, by treatment of surfaces with conidial suspension, under laboratory conditions. Both species were susceptible to the isolates of M. rileyi, with mortality rates of 53-58 % for C. includens and 74-84 % for S. frugiperda. The results suggest that the host of origin may not be determinant in the selection of pathogenic isolates of M. rileyi against these two pest insects. KEYWORDS: Biopesticide, soybean looper, fall armyworm, green muscardine, entomopathogenic fungus.Em razão do reduzido espectro hospedeiro do fungo entomopatogênico Metarhizium rileyi, sua patogenicidade contra diferentes insetos alvos deve ser avaliada para o desenvolvimento de bioinseticidas capazes de controlar mais de uma espécie-praga. Objetivou-se avaliar a suscetibilidade das espécies-pragas Chrysodeixis includens e Spodoptera frugiperda a diferentes isolados de M. rileyi e, assim, determinar uma possível influência do hospedeiro de origem na atividade patogênica desses isolados. Três isolados [CG1312 (C. includens como hospedeiro original), CG381 (S. frugiperda como hospedeiro original) e um novo isolado selvagem (C. includens como hospedeiro original)] foram testados contra lagartas de C. includens e S. frugiperda, em idade de terceiro ínstar, por tratamento de superfícies com suspensão de conídios, em laboratório. Ambas as espécies foram suscetíveis aos isolados de M. rileyi, com índices de mortalidade de 53-58 % para C. includens e 74-84 % para S. frugiperda. Os resultados sugerem que o hospedeiro de origem pode não ser determinante na seleção de isolados patogênicos de M. rileyi contra essas duas espécies de praga. PALAVRAS-CHAVE: Biopesticida, largarta falsa-medideira, lagarta-do-cartucho, muscardine verde, fungo entomopatogênico.Escola de Agronomia - Universidade Federal de Goiás2020-07-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/61713Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e61713Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e61713Pesquisa Agropecuária Tropical; v. 50 (2020); e617131983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/61713/35034Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessBarros, Suellen Karina AlbertoniPitta, Rafael MajorLopes, Rogério BiaggioniAlmeida, Euziclei Gonzaga deFerreira, Fátima Teresinha Rampelotti2020-07-13T12:52:51Zoai:ojs.revistas.ufg.br:article/61713Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:27.882266Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi Suscetibilidade de Spodoptera frugiperda e Chrysodeixis includens (Lepidoptera: Noctuidae) a infecções causadas por Metarhizium rileyi |
title |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi |
spellingShingle |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi Barros, Suellen Karina Albertoni |
title_short |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi |
title_full |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi |
title_fullStr |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi |
title_full_unstemmed |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi |
title_sort |
Susceptibility of Spodoptera frugiperda and Chrysodeixis includens (Lepidoptera: Noctuidae) to infections caused by Metarhizium rileyi |
author |
Barros, Suellen Karina Albertoni |
author_facet |
Barros, Suellen Karina Albertoni Pitta, Rafael Major Lopes, Rogério Biaggioni Almeida, Euziclei Gonzaga de Ferreira, Fátima Teresinha Rampelotti |
author_role |
author |
author2 |
Pitta, Rafael Major Lopes, Rogério Biaggioni Almeida, Euziclei Gonzaga de Ferreira, Fátima Teresinha Rampelotti |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Barros, Suellen Karina Albertoni Pitta, Rafael Major Lopes, Rogério Biaggioni Almeida, Euziclei Gonzaga de Ferreira, Fátima Teresinha Rampelotti |
description |
Due to the reduced host spectrum of the entomopathogenic fungus Metarhizium rileyi, its pathogenicity against different target insects must be assessed to develop biopesticides capable of controlling more than one pest species. This study aimed to evaluate the susceptibility of the pest species Chrysodeixis includens and Spodoptera frugiperda to different isolates of M. rileyi and, thus, determine a possible influence of the host of origin on the pathogenic activity of these isolates. Three isolates [CG1312 (C. includens as original host), CG381 (S. frugiperda as original host) and a new wild isolate (C. includens as original host)] were tested against larvae of C. includens and S. frugiperda, in third instar age, by treatment of surfaces with conidial suspension, under laboratory conditions. Both species were susceptible to the isolates of M. rileyi, with mortality rates of 53-58 % for C. includens and 74-84 % for S. frugiperda. The results suggest that the host of origin may not be determinant in the selection of pathogenic isolates of M. rileyi against these two pest insects. KEYWORDS: Biopesticide, soybean looper, fall armyworm, green muscardine, entomopathogenic fungus. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-07-08 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/pat/article/view/61713 |
url |
https://revistas.ufg.br/pat/article/view/61713 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/61713/35034 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics) info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics) |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Escola de Agronomia - Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 50 (2020); e61713 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 50 (2020); e61713 Pesquisa Agropecuária Tropical; v. 50 (2020); e61713 1983-4063 reponame:Pesquisa Agropecuária Tropical (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Pesquisa Agropecuária Tropical (Online) |
collection |
Pesquisa Agropecuária Tropical (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
aseleguini.pat@gmail.com||mgoes@agro.ufg.br |
_version_ |
1799874820537581568 |