DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES

Detalhes bibliográficos
Autor(a) principal: Fernandes, Fabricio Oliveira [UNESP]
Data de Publicação: 2020
Outros Autores: Abreu, Jessica Avila de, Christ, Lucas Martins, Schneid Afonso da Rosa, Ana Paula, Mendes, Simone Martins
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.14393/BJ-v36n3a2020-47782
http://hdl.handle.net/11449/196837
Resumo: Helicoverpa armigera Hubner, 1805 and Spodoptera frugiperda Smith, 1797 are polyphagous pests of great agricultural importance in subtropical and temperate climate regions. The usual management of production areas in the southern region of Brazil occurs after the harvesting of summer crops, and the areas are sown with pasture. Thus, forages recommended for grazing are azevem (Lolium multiflorum Lam.) and cornichdo (Lotus corniculatus L.) due to their nutritional benefits, good palatability, regrowth, and hardiness. Considering the high degree of polyphagia of H. armigera and S. frugiperda, and the impact of maintaining continuous feeding areas (green bridges) in the management of these species, this work aimed to evaluate the development of H. armigera and S. frugiperda fed leaves of azevem and cornichdo under laboratory conditions. The insects were collected in the city of Capao do Leao/RS in corn and soybean plantations. For each forage species, 130 newly hatched caterpillars were each placed in autoclaved glass tubes, with one-third of the tube length containing forage. The tubes were capped with waterproof cotton and placed in a climate-controlled room at 25 +/- 1 degrees C, 70 +/- 10% relative humidity, and a 12-h photophase. The food was replenished daily until the caterpillars entered the pupae stage. The pupae were sexed and weighed, and the newly emerged adults were placed in pairs in PVC cages, lined with white A4 sulfite paper. The papers used as a laying substrate were removed and changed daily, and eggs were counted. The number of instars was determined by the linearized Dyar rule model. The complete randomization design was employed for the variables biological cycle length and viability of egg, caterpillar, pre-pupa, pupa, adult, and pre-oviposition phases and weight of caterpillars on the 14th day and pupae after 24 h. Based on the results obtained, a fertility life table was prepared. H. armigera did not complete the cycle, with only three instars and a duration of 22.1 and 24.6 days in azevem and cornichdo, respectively. When evaluated in S. frugiperda caterpillars, development in forage species was observed, with five and six instars and duration of 51.7 and 45.1 days in azevem and cornichdo, respectively. The azevem was distinguished by interference in the development cycle of the species, reducing the effect of the green bridge. In addition, surviving insects were susceptible to the effects of the agroecosystem due to the low-quality food source.
id UNSP_1693ca2ca08e84d58198617c6e25a9be
oai_identifier_str oai:repositorio.unesp.br:11449/196837
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGESCovering plantsInsect resistance managementCultural managementConstitutive resistanceResistance of plantsHelicoverpa armigera Hubner, 1805 and Spodoptera frugiperda Smith, 1797 are polyphagous pests of great agricultural importance in subtropical and temperate climate regions. The usual management of production areas in the southern region of Brazil occurs after the harvesting of summer crops, and the areas are sown with pasture. Thus, forages recommended for grazing are azevem (Lolium multiflorum Lam.) and cornichdo (Lotus corniculatus L.) due to their nutritional benefits, good palatability, regrowth, and hardiness. Considering the high degree of polyphagia of H. armigera and S. frugiperda, and the impact of maintaining continuous feeding areas (green bridges) in the management of these species, this work aimed to evaluate the development of H. armigera and S. frugiperda fed leaves of azevem and cornichdo under laboratory conditions. The insects were collected in the city of Capao do Leao/RS in corn and soybean plantations. For each forage species, 130 newly hatched caterpillars were each placed in autoclaved glass tubes, with one-third of the tube length containing forage. The tubes were capped with waterproof cotton and placed in a climate-controlled room at 25 +/- 1 degrees C, 70 +/- 10% relative humidity, and a 12-h photophase. The food was replenished daily until the caterpillars entered the pupae stage. The pupae were sexed and weighed, and the newly emerged adults were placed in pairs in PVC cages, lined with white A4 sulfite paper. The papers used as a laying substrate were removed and changed daily, and eggs were counted. The number of instars was determined by the linearized Dyar rule model. The complete randomization design was employed for the variables biological cycle length and viability of egg, caterpillar, pre-pupa, pupa, adult, and pre-oviposition phases and weight of caterpillars on the 14th day and pupae after 24 h. Based on the results obtained, a fertility life table was prepared. H. armigera did not complete the cycle, with only three instars and a duration of 22.1 and 24.6 days in azevem and cornichdo, respectively. When evaluated in S. frugiperda caterpillars, development in forage species was observed, with five and six instars and duration of 51.7 and 45.1 days in azevem and cornichdo, respectively. The azevem was distinguished by interference in the development cycle of the species, reducing the effect of the green bridge. In addition, surviving insects were susceptible to the effects of the agroecosystem due to the low-quality food source.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Paulista State University Julio de Mesquita FilhoFederal University of PelotasEmbrapa Temperate ClimatePaulista State Univ Julio de Mesquita Filho, Fac Agr & Vet Sci, Crop Protect Dept, Jaboticabal, SP, BrazilUniv Fed Pelotas, Crop Protect Dept, Univ Campus, Capao Do Ledo, RS, BrazilEmbrapa Temperate Weather, Pelotas, RS, BrazilEmbrapa Com & Sorghum, Sete Lagoas, MG, BrazilPaulista State Univ Julio de Mesquita Filho, Fac Agr & Vet Sci, Crop Protect Dept, Jaboticabal, SP, BrazilCAPES: 001Univ Federal UberlandiaUniversidade Estadual Paulista (Unesp)Univ Fed PelotasEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Fernandes, Fabricio Oliveira [UNESP]Abreu, Jessica Avila deChrist, Lucas MartinsSchneid Afonso da Rosa, Ana PaulaMendes, Simone Martins2020-12-10T19:57:46Z2020-12-10T19:57:46Z2020-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article844-856http://dx.doi.org/10.14393/BJ-v36n3a2020-47782Bioscience Journal. Uberlandia: Univ Federal Uberlandia, v. 36, n. 3, p. 844-856, 2020.1981-3163http://hdl.handle.net/11449/19683710.14393/BJ-v36n3a2020-47782WOS:000529057300015Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBioscience Journalinfo:eu-repo/semantics/openAccess2024-06-06T15:51:32Zoai:repositorio.unesp.br:11449/196837Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:05:05.085533Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
title DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
spellingShingle DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
Fernandes, Fabricio Oliveira [UNESP]
Covering plants
Insect resistance management
Cultural management
Constitutive resistance
Resistance of plants
title_short DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
title_full DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
title_fullStr DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
title_full_unstemmed DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
title_sort DEVELOPMENT OF Helicoverpa armigera HUBNER, 1805 AND Spodoptera frugiperda SMITH, 1797 IN WINTER FORAGES
author Fernandes, Fabricio Oliveira [UNESP]
author_facet Fernandes, Fabricio Oliveira [UNESP]
Abreu, Jessica Avila de
Christ, Lucas Martins
Schneid Afonso da Rosa, Ana Paula
Mendes, Simone Martins
author_role author
author2 Abreu, Jessica Avila de
Christ, Lucas Martins
Schneid Afonso da Rosa, Ana Paula
Mendes, Simone Martins
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Univ Fed Pelotas
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.author.fl_str_mv Fernandes, Fabricio Oliveira [UNESP]
Abreu, Jessica Avila de
Christ, Lucas Martins
Schneid Afonso da Rosa, Ana Paula
Mendes, Simone Martins
dc.subject.por.fl_str_mv Covering plants
Insect resistance management
Cultural management
Constitutive resistance
Resistance of plants
topic Covering plants
Insect resistance management
Cultural management
Constitutive resistance
Resistance of plants
description Helicoverpa armigera Hubner, 1805 and Spodoptera frugiperda Smith, 1797 are polyphagous pests of great agricultural importance in subtropical and temperate climate regions. The usual management of production areas in the southern region of Brazil occurs after the harvesting of summer crops, and the areas are sown with pasture. Thus, forages recommended for grazing are azevem (Lolium multiflorum Lam.) and cornichdo (Lotus corniculatus L.) due to their nutritional benefits, good palatability, regrowth, and hardiness. Considering the high degree of polyphagia of H. armigera and S. frugiperda, and the impact of maintaining continuous feeding areas (green bridges) in the management of these species, this work aimed to evaluate the development of H. armigera and S. frugiperda fed leaves of azevem and cornichdo under laboratory conditions. The insects were collected in the city of Capao do Leao/RS in corn and soybean plantations. For each forage species, 130 newly hatched caterpillars were each placed in autoclaved glass tubes, with one-third of the tube length containing forage. The tubes were capped with waterproof cotton and placed in a climate-controlled room at 25 +/- 1 degrees C, 70 +/- 10% relative humidity, and a 12-h photophase. The food was replenished daily until the caterpillars entered the pupae stage. The pupae were sexed and weighed, and the newly emerged adults were placed in pairs in PVC cages, lined with white A4 sulfite paper. The papers used as a laying substrate were removed and changed daily, and eggs were counted. The number of instars was determined by the linearized Dyar rule model. The complete randomization design was employed for the variables biological cycle length and viability of egg, caterpillar, pre-pupa, pupa, adult, and pre-oviposition phases and weight of caterpillars on the 14th day and pupae after 24 h. Based on the results obtained, a fertility life table was prepared. H. armigera did not complete the cycle, with only three instars and a duration of 22.1 and 24.6 days in azevem and cornichdo, respectively. When evaluated in S. frugiperda caterpillars, development in forage species was observed, with five and six instars and duration of 51.7 and 45.1 days in azevem and cornichdo, respectively. The azevem was distinguished by interference in the development cycle of the species, reducing the effect of the green bridge. In addition, surviving insects were susceptible to the effects of the agroecosystem due to the low-quality food source.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-10T19:57:46Z
2020-12-10T19:57:46Z
2020-05-01
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/10.14393/BJ-v36n3a2020-47782
Bioscience Journal. Uberlandia: Univ Federal Uberlandia, v. 36, n. 3, p. 844-856, 2020.
1981-3163
http://hdl.handle.net/11449/196837
10.14393/BJ-v36n3a2020-47782
WOS:000529057300015
url http://dx.doi.org/10.14393/BJ-v36n3a2020-47782
http://hdl.handle.net/11449/196837
identifier_str_mv Bioscience Journal. Uberlandia: Univ Federal Uberlandia, v. 36, n. 3, p. 844-856, 2020.
1981-3163
10.14393/BJ-v36n3a2020-47782
WOS:000529057300015
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Bioscience Journal
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 844-856
dc.publisher.none.fl_str_mv Univ Federal Uberlandia
publisher.none.fl_str_mv Univ Federal Uberlandia
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
_version_ 1808129488723116032