Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism

Detalhes bibliográficos
Autor(a) principal: Zuim, Vitor
Data de Publicação: 2017
Outros Autores: Rodrigues, Hígor de Souza, Pratissoli, Dirceu, Torres, Jorge Braz, Fragoso, Débora Ferreira Melo, Bueno, Regiane Cristina Oliveira de Freitas [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.4025/actascibiolsci.v39i4.34943
http://hdl.handle.net/11449/228418
Resumo: This study evaluated the parasitism of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on eggs of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) at different ages and densities. The rates of parasitism and emergence, the number of parasitoids emerged per egg and sex ratio of offspring were evaluated in both experiments. Eggs of H. armigera up to 36 hours provided greater parasitism and emergence of adults compared to eggs up to 60 hours old. The number of parasitoids, which emerged per host egg, was greater than one and the sex ratio remained around 80% of females, regardless of the egg development stage. Females of T. pretiosum responded with superior rates of parasitism, emergence and number of parasitoids per egg at the densities of 20 and 25 eggs of H. armigera. These results indicate that T. pretiosum parasite with superior performance in eggs of up to 36h of age and densities of 20 eggs per female day-1 in laboratory conditions. These results will help to establish the intervals between releases of parasitoids, aiming to control this pest, when adjusted with knowledge of the survival of the parasitoids in the field and in pest infestation.
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spelling Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitismInfluência da idade e densidade de ovos de Helicoverpa armigera no parasitismo de Trichogramma pretiosumBiological controlEgg parasitoidExotic pestHost-parasitoid interactionNoctuidaeThis study evaluated the parasitism of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on eggs of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) at different ages and densities. The rates of parasitism and emergence, the number of parasitoids emerged per egg and sex ratio of offspring were evaluated in both experiments. Eggs of H. armigera up to 36 hours provided greater parasitism and emergence of adults compared to eggs up to 60 hours old. The number of parasitoids, which emerged per host egg, was greater than one and the sex ratio remained around 80% of females, regardless of the egg development stage. Females of T. pretiosum responded with superior rates of parasitism, emergence and number of parasitoids per egg at the densities of 20 and 25 eggs of H. armigera. These results indicate that T. pretiosum parasite with superior performance in eggs of up to 36h of age and densities of 20 eggs per female day-1 in laboratory conditions. These results will help to establish the intervals between releases of parasitoids, aiming to control this pest, when adjusted with knowledge of the survival of the parasitoids in the field and in pest infestation.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Empresa Brasileira de Pesquisa AgropecuáriaFundação Estadual de Amparo à Pesquisa do Estado do Espírito SantoDepartamento de Agronomia-Entomologia Universidade Federal Rural de PernambucoDepartamento de Entomologia Universidade Federal de ViçosaDepartamento de Produção Vegetal Centro de Ciências Agrárias da Universidade Federal do Espírito SantoDepartamento de Produção Vegetal Centro de Ciências Agrárias Universidade Federal do Espírito Santo, Alto Universitário, s/noDepartamento de Produção Vegetal Faculdade de Ciências Agronômicas Universidade Estadual Paulista “Júlio de Mesquita Filho”Departamento de Produção Vegetal Faculdade de Ciências Agronômicas Universidade Estadual Paulista “Júlio de Mesquita Filho”Universidade Federal Rural de PernambucoUniversidade Federal de Viçosa (UFV)Universidade Federal do Espírito Santo (UFES)Universidade Estadual Paulista (UNESP)Zuim, VitorRodrigues, Hígor de SouzaPratissoli, DirceuTorres, Jorge BrazFragoso, Débora Ferreira MeloBueno, Regiane Cristina Oliveira de Freitas [UNESP]2022-04-29T08:14:42Z2022-04-29T08:14:42Z2017-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article513-520http://dx.doi.org/10.4025/actascibiolsci.v39i4.34943Acta Scientiarum - Biological Sciences, v. 39, n. 4, p. 513-520, 2017.1807-863X1679-9283http://hdl.handle.net/11449/22841810.4025/actascibiolsci.v39i4.349432-s2.0-85035208450Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Scientiarum - Biological Sciencesinfo:eu-repo/semantics/openAccess2024-04-30T15:58:07Zoai:repositorio.unesp.br:11449/228418Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:36:52.681791Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
Influência da idade e densidade de ovos de Helicoverpa armigera no parasitismo de Trichogramma pretiosum
title Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
spellingShingle Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
Zuim, Vitor
Biological control
Egg parasitoid
Exotic pest
Host-parasitoid interaction
Noctuidae
title_short Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
title_full Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
title_fullStr Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
title_full_unstemmed Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
title_sort Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
author Zuim, Vitor
author_facet Zuim, Vitor
Rodrigues, Hígor de Souza
Pratissoli, Dirceu
Torres, Jorge Braz
Fragoso, Débora Ferreira Melo
Bueno, Regiane Cristina Oliveira de Freitas [UNESP]
author_role author
author2 Rodrigues, Hígor de Souza
Pratissoli, Dirceu
Torres, Jorge Braz
Fragoso, Débora Ferreira Melo
Bueno, Regiane Cristina Oliveira de Freitas [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal Rural de Pernambuco
Universidade Federal de Viçosa (UFV)
Universidade Federal do Espírito Santo (UFES)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Zuim, Vitor
Rodrigues, Hígor de Souza
Pratissoli, Dirceu
Torres, Jorge Braz
Fragoso, Débora Ferreira Melo
Bueno, Regiane Cristina Oliveira de Freitas [UNESP]
dc.subject.por.fl_str_mv Biological control
Egg parasitoid
Exotic pest
Host-parasitoid interaction
Noctuidae
topic Biological control
Egg parasitoid
Exotic pest
Host-parasitoid interaction
Noctuidae
description This study evaluated the parasitism of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on eggs of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) at different ages and densities. The rates of parasitism and emergence, the number of parasitoids emerged per egg and sex ratio of offspring were evaluated in both experiments. Eggs of H. armigera up to 36 hours provided greater parasitism and emergence of adults compared to eggs up to 60 hours old. The number of parasitoids, which emerged per host egg, was greater than one and the sex ratio remained around 80% of females, regardless of the egg development stage. Females of T. pretiosum responded with superior rates of parasitism, emergence and number of parasitoids per egg at the densities of 20 and 25 eggs of H. armigera. These results indicate that T. pretiosum parasite with superior performance in eggs of up to 36h of age and densities of 20 eggs per female day-1 in laboratory conditions. These results will help to establish the intervals between releases of parasitoids, aiming to control this pest, when adjusted with knowledge of the survival of the parasitoids in the field and in pest infestation.
publishDate 2017
dc.date.none.fl_str_mv 2017-10-01
2022-04-29T08:14:42Z
2022-04-29T08:14:42Z
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/10.4025/actascibiolsci.v39i4.34943
Acta Scientiarum - Biological Sciences, v. 39, n. 4, p. 513-520, 2017.
1807-863X
1679-9283
http://hdl.handle.net/11449/228418
10.4025/actascibiolsci.v39i4.34943
2-s2.0-85035208450
url http://dx.doi.org/10.4025/actascibiolsci.v39i4.34943
http://hdl.handle.net/11449/228418
identifier_str_mv Acta Scientiarum - Biological Sciences, v. 39, n. 4, p. 513-520, 2017.
1807-863X
1679-9283
10.4025/actascibiolsci.v39i4.34943
2-s2.0-85035208450
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Acta Scientiarum - Biological Sciences
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 513-520
dc.source.none.fl_str_mv Scopus
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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