Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae)
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1186/s41938-020-00327-9 http://hdl.handle.net/11449/209745 |
Resumo: | Background Broad-spectrum pesticides and Bt crops have been used against the cotton bollworm, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae), but their effect on the environment and the development of resistance are the main limitations for these control measures. The use of mycobiopesticides is an ecofriendly and efficient alternative. Fungicides have a wide distribution and a high genetic variability, which allows their screening for more virulent isolates. Therefore, the objective of this work was to evaluate the interactions of H. armigera larvae with Metarhizium anisopliae and Beauveria bassiana, on mortality, virulence, sublethal effects, and life table aspects. Main body The isolates that caused mortality rates of H. armigera above 80% were selected for further assays. Virulence was measured by LC50 estimates, using Probit analysis to sublethal effects, and the bootstrap procedure to estimate the biological parameters: time for development, fertility, longevity, pre-ovipositional period, egg viability, and sex ratio. The H. armigera mortality rates caused by B. bassiana and M. anisopliae ranged from 45 to 100% and from 40 to 90%, respectively. Longevity, fertility, and survival rates are affected in all treatments. The pupal weight of individuals treated with fungi was lower than in the control. Deformations were observed in H. armigera pupae developed from larvae treated with B. bassiana. Conclusion The use of sublethal concentrations of isolates of M. anisopliae and B. bassiana resulted in an adverse effect on the biological parameters of H. armigera. |
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Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae)Helicoverpa armigeraMetarhizium anisopliaeBeauveria bassianaPathogenicitySublethal effectsLife tableBackground Broad-spectrum pesticides and Bt crops have been used against the cotton bollworm, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae), but their effect on the environment and the development of resistance are the main limitations for these control measures. The use of mycobiopesticides is an ecofriendly and efficient alternative. Fungicides have a wide distribution and a high genetic variability, which allows their screening for more virulent isolates. Therefore, the objective of this work was to evaluate the interactions of H. armigera larvae with Metarhizium anisopliae and Beauveria bassiana, on mortality, virulence, sublethal effects, and life table aspects. Main body The isolates that caused mortality rates of H. armigera above 80% were selected for further assays. Virulence was measured by LC50 estimates, using Probit analysis to sublethal effects, and the bootstrap procedure to estimate the biological parameters: time for development, fertility, longevity, pre-ovipositional period, egg viability, and sex ratio. The H. armigera mortality rates caused by B. bassiana and M. anisopliae ranged from 45 to 100% and from 40 to 90%, respectively. Longevity, fertility, and survival rates are affected in all treatments. The pupal weight of individuals treated with fungi was lower than in the control. Deformations were observed in H. armigera pupae developed from larvae treated with B. bassiana. Conclusion The use of sublethal concentrations of isolates of M. anisopliae and B. bassiana resulted in an adverse effect on the biological parameters of H. armigera.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Sao Paulo State Univ, Dept Crop Protect, Coll Agr & Vet Sci, Rod Prof Paulo Donato Castellane Km 5, BR-14884900 Jaboticabal, SP, BrazilSao Paulo State Univ, Dept Crop Protect, Coll Agr & Vet Sci, Rod Prof Paulo Donato Castellane Km 5, BR-14884900 Jaboticabal, SP, BrazilFAPESP: 2018/21089-3CAPES: 001SpringerUniversidade Estadual Paulista (Unesp)Souza, Tamires Doroteo de [UNESP]Fernandes, Fabricio Oliveira [UNESP]Sanches, Ariadne Costa [UNESP]Polanczyk, Ricardo Antonio [UNESP]2021-06-25T12:27:52Z2021-06-25T12:27:52Z2020-11-23info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article12http://dx.doi.org/10.1186/s41938-020-00327-9Egyptian Journal Of Biological Pest Control. New York: Springer, v. 30, n. 1, 12 p., 2020.1110-1768http://hdl.handle.net/11449/20974510.1186/s41938-020-00327-9WOS:000595678400002Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEgyptian Journal Of Biological Pest Controlinfo:eu-repo/semantics/openAccess2021-10-23T19:49:59Zoai:repositorio.unesp.br:11449/209745Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T19:49:59Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) |
title |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) |
spellingShingle |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) Souza, Tamires Doroteo de [UNESP] Helicoverpa armigera Metarhizium anisopliae Beauveria bassiana Pathogenicity Sublethal effects Life table |
title_short |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) |
title_full |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) |
title_fullStr |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) |
title_full_unstemmed |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) |
title_sort |
Sublethal effects of different fungal isolates on Helicoverpa armigera (Lepidoptera: Noctuidae) |
author |
Souza, Tamires Doroteo de [UNESP] |
author_facet |
Souza, Tamires Doroteo de [UNESP] Fernandes, Fabricio Oliveira [UNESP] Sanches, Ariadne Costa [UNESP] Polanczyk, Ricardo Antonio [UNESP] |
author_role |
author |
author2 |
Fernandes, Fabricio Oliveira [UNESP] Sanches, Ariadne Costa [UNESP] Polanczyk, Ricardo Antonio [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Souza, Tamires Doroteo de [UNESP] Fernandes, Fabricio Oliveira [UNESP] Sanches, Ariadne Costa [UNESP] Polanczyk, Ricardo Antonio [UNESP] |
dc.subject.por.fl_str_mv |
Helicoverpa armigera Metarhizium anisopliae Beauveria bassiana Pathogenicity Sublethal effects Life table |
topic |
Helicoverpa armigera Metarhizium anisopliae Beauveria bassiana Pathogenicity Sublethal effects Life table |
description |
Background Broad-spectrum pesticides and Bt crops have been used against the cotton bollworm, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae), but their effect on the environment and the development of resistance are the main limitations for these control measures. The use of mycobiopesticides is an ecofriendly and efficient alternative. Fungicides have a wide distribution and a high genetic variability, which allows their screening for more virulent isolates. Therefore, the objective of this work was to evaluate the interactions of H. armigera larvae with Metarhizium anisopliae and Beauveria bassiana, on mortality, virulence, sublethal effects, and life table aspects. Main body The isolates that caused mortality rates of H. armigera above 80% were selected for further assays. Virulence was measured by LC50 estimates, using Probit analysis to sublethal effects, and the bootstrap procedure to estimate the biological parameters: time for development, fertility, longevity, pre-ovipositional period, egg viability, and sex ratio. The H. armigera mortality rates caused by B. bassiana and M. anisopliae ranged from 45 to 100% and from 40 to 90%, respectively. Longevity, fertility, and survival rates are affected in all treatments. The pupal weight of individuals treated with fungi was lower than in the control. Deformations were observed in H. armigera pupae developed from larvae treated with B. bassiana. Conclusion The use of sublethal concentrations of isolates of M. anisopliae and B. bassiana resulted in an adverse effect on the biological parameters of H. armigera. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-11-23 2021-06-25T12:27:52Z 2021-06-25T12:27:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1186/s41938-020-00327-9 Egyptian Journal Of Biological Pest Control. New York: Springer, v. 30, n. 1, 12 p., 2020. 1110-1768 http://hdl.handle.net/11449/209745 10.1186/s41938-020-00327-9 WOS:000595678400002 |
url |
http://dx.doi.org/10.1186/s41938-020-00327-9 http://hdl.handle.net/11449/209745 |
identifier_str_mv |
Egyptian Journal Of Biological Pest Control. New York: Springer, v. 30, n. 1, 12 p., 2020. 1110-1768 10.1186/s41938-020-00327-9 WOS:000595678400002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Egyptian Journal Of Biological Pest Control |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
12 |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1792961468546678784 |