Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Tropical (Online) |
Texto Completo: | https://revistas.ufg.br/pat/article/view/67353 |
Resumo: | The looper caterpillar Chrysodeixis includens (Walker) is considered the main defoliating pest in soybean crops, which contributes to yield losses. Delaying its resistance to insecticides is a major challenge in its management. This study aimed to characterize the susceptibility of C. includens to flubendiamide, cyantraniliprole, spinetoram and methomyl, as well as to establish a diagnostic concentration for monitoring resistance. The insecticide was applied to the surface of the artificial diet. For the dose-response curve, concentrations that resulted in 5 to 99 % mortality were used to estimate the lethal concentrations (LC50 and LC99) and resistance ratios (RR50 and RR99). The diagnostic concentrations were based on concentrations that provided 90 to 99 % mortality in the susceptible reference population. For flubendiamide and methomyl, the decrease in the susceptibility resulted in estimated RR50 of 6.2 to 24.2 and 4.4 to 19.6 times, respectively. For cyantraniliprole and spinetoram, there was little difference in susceptibility among the populations, with RR99 lower than 6.1 times. Differences in the susceptibility of C. includens were evident from concentrations of 0.5053, 5.053, 0.1579 and 28.42 μg cm-², respectively for flubendiamide, cyantraniliprole, spinetoram and methomyl. KEYWORDS: Glycine max, Plusiinae, insecticide resistance. |
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Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticidesVariabilidade intraespecífica na suscetibilidade de Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) a inseticidasThe looper caterpillar Chrysodeixis includens (Walker) is considered the main defoliating pest in soybean crops, which contributes to yield losses. Delaying its resistance to insecticides is a major challenge in its management. This study aimed to characterize the susceptibility of C. includens to flubendiamide, cyantraniliprole, spinetoram and methomyl, as well as to establish a diagnostic concentration for monitoring resistance. The insecticide was applied to the surface of the artificial diet. For the dose-response curve, concentrations that resulted in 5 to 99 % mortality were used to estimate the lethal concentrations (LC50 and LC99) and resistance ratios (RR50 and RR99). The diagnostic concentrations were based on concentrations that provided 90 to 99 % mortality in the susceptible reference population. For flubendiamide and methomyl, the decrease in the susceptibility resulted in estimated RR50 of 6.2 to 24.2 and 4.4 to 19.6 times, respectively. For cyantraniliprole and spinetoram, there was little difference in susceptibility among the populations, with RR99 lower than 6.1 times. Differences in the susceptibility of C. includens were evident from concentrations of 0.5053, 5.053, 0.1579 and 28.42 μg cm-², respectively for flubendiamide, cyantraniliprole, spinetoram and methomyl. KEYWORDS: Glycine max, Plusiinae, insecticide resistance.A lagarta falsa-medideira Chrysodeixis includens (Walker) é considerada o principal inseto desfolhador da cultura da soja, o qual contribui para a redução da produção. Para o seu manejo, um importante desafio é retardar sua resistência a inseticidas. Objetivou-se caracterizar a suscetibilidade de C. includens a flubendiamida, ciantraniliprole, espinetoram e metomil, bem como definir uma concentração diagnóstica para o monitoramento da resistência. Efetuou-se aplicação de inseticida sobre a superfície da dieta artificial. Para a curva dose-resposta, foram utilizadas concentrações que proporcionaram mortalidade entre 5 e 99 %, para estimar as concentrações letais (CL50 e CL99) e razões de resistência (RR50 e RR99). As concentrações diagnósticas foram definidas com base em concentrações que proporcionaram mortalidade entre 90 e 99 % na população suscetível de referência. Para flubendiamida e metomil, a redução na suscetibilidade proporcionou RR50 estimada em 6,2 a 24,2 e 4,4 a 19,6 vezes, respectivamente. Para ciantraniliprole e espinetoram, houve pouca diferença na suscetibilidade entre as populações, com RR99 inferior a 6,1 vezes. A partir das concentrações de 0,5053; 5,053; 0,1579; e 28,42 μg cm-², respectivamente para flubendiamida, ciantraniliprole, espinetoram e metomil, foram evidenciadas diferenças na suscetibilidade de C. includens. PALAVRAS-CHAVE: Glycine max, Plusiinae, resistência a inseticidas.Escola de Agronomia - Universidade Federal de Goiás2021-09-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresapplication/pdfhttps://revistas.ufg.br/pat/article/view/67353Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; Vol. 51 (2021); e67353Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e67353Pesquisa Agropecuária Tropical; v. 51 (2021); e673531983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGenghttps://revistas.ufg.br/pat/article/view/67353/37200Copyright (c) 2021 Pesquisa Agropecuária Tropicalinfo:eu-repo/semantics/openAccessRestelatto, Samanta SouzaWille, Paulo EduardoBuss, NayaraWille, Cleiton LuisBoff, Mari Inês CarissimiContini, Rafael ErmenegildoFranco, Cláudio Roberto2021-09-23T16:19:53Zoai:ojs.revistas.ufg.br:article/67353Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:31.750169Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides Variabilidade intraespecífica na suscetibilidade de Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) a inseticidas |
title |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides |
spellingShingle |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides Restelatto, Samanta Souza |
title_short |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides |
title_full |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides |
title_fullStr |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides |
title_full_unstemmed |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides |
title_sort |
Intraspecific variation in the Chrysodeixis includens (Walker) (Lepidoptera: Noctuidae) susceptibility to insecticides |
author |
Restelatto, Samanta Souza |
author_facet |
Restelatto, Samanta Souza Wille, Paulo Eduardo Buss, Nayara Wille, Cleiton Luis Boff, Mari Inês Carissimi Contini, Rafael Ermenegildo Franco, Cláudio Roberto |
author_role |
author |
author2 |
Wille, Paulo Eduardo Buss, Nayara Wille, Cleiton Luis Boff, Mari Inês Carissimi Contini, Rafael Ermenegildo Franco, Cláudio Roberto |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Restelatto, Samanta Souza Wille, Paulo Eduardo Buss, Nayara Wille, Cleiton Luis Boff, Mari Inês Carissimi Contini, Rafael Ermenegildo Franco, Cláudio Roberto |
description |
The looper caterpillar Chrysodeixis includens (Walker) is considered the main defoliating pest in soybean crops, which contributes to yield losses. Delaying its resistance to insecticides is a major challenge in its management. This study aimed to characterize the susceptibility of C. includens to flubendiamide, cyantraniliprole, spinetoram and methomyl, as well as to establish a diagnostic concentration for monitoring resistance. The insecticide was applied to the surface of the artificial diet. For the dose-response curve, concentrations that resulted in 5 to 99 % mortality were used to estimate the lethal concentrations (LC50 and LC99) and resistance ratios (RR50 and RR99). The diagnostic concentrations were based on concentrations that provided 90 to 99 % mortality in the susceptible reference population. For flubendiamide and methomyl, the decrease in the susceptibility resulted in estimated RR50 of 6.2 to 24.2 and 4.4 to 19.6 times, respectively. For cyantraniliprole and spinetoram, there was little difference in susceptibility among the populations, with RR99 lower than 6.1 times. Differences in the susceptibility of C. includens were evident from concentrations of 0.5053, 5.053, 0.1579 and 28.42 μg cm-², respectively for flubendiamide, cyantraniliprole, spinetoram and methomyl. KEYWORDS: Glycine max, Plusiinae, insecticide resistance. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-09-23 |
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/67353 |
url |
https://revistas.ufg.br/pat/article/view/67353 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/pat/article/view/67353/37200 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2021 Pesquisa Agropecuária Tropical info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2021 Pesquisa Agropecuária Tropical |
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. 51 (2021); e67353 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); Vol. 51 (2021); e67353 Pesquisa Agropecuária Tropical; v. 51 (2021); e67353 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_ |
1799874821051383808 |