Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs

Detalhes bibliográficos
Autor(a) principal: Carvalho, Gabriel dos Santos
Data de Publicação: 2017
Outros Autores: Silva, Luciana Barboza, Reis, Soislan Sousa, Veras, Maisa Sousa, Carneiro, Eliane, Almeida, Mayra Layra dos Santos, Silva, Alexandre Faria da, Lopes, Gleidyane Novais
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/25131
Resumo: The objective of this work was to determine the biological parameters and thermal requirements of Trichogramma pretiosum TM strain reared on Helicoverpa armigera eggs. A card containing 20 eggs of H. armigera was offered for each T. pretiosum female, at temperatures of 18, 20, 22, 25, 28, 30 and 32°C. All life stages of T. pretiosum were observed under the given temperature conditions. The optimum temperature for the parasitism of T. pretiosum was 25°C, and the highest longevity was found at the same temperature. The highest parasitoid emergence rates occurred at temperatures of 22, 25 and 28°C. The highest proportion of T. pretiosum individuals emerged per egg was observed at 18°C. Concerning the sex ratio, the highest proportion of females occurred at 28°C, and the highest percentage of parasitism viability was observed at this same temperature. The lowest thermal threshold for total preimaginal development and thermal requirements of T. pretiosum were 10.82°C and 134.55 degree-days, respectively. The estimated number of generations of T. pretiosum in the average temperatures of municipality of Bom Jesus, state of Piauí, Brazil is four per month.
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spelling Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggsParâmetros biológicos e exigências térmicas de Trichogramma pretiosum sobre ovos de Helicoverpa armigeraTrichogrammatidae; biological control; parasitoid; temperatureTrichogrammatidae; controle biológico; parasitoide; temperaturaThe objective of this work was to determine the biological parameters and thermal requirements of Trichogramma pretiosum TM strain reared on Helicoverpa armigera eggs. A card containing 20 eggs of H. armigera was offered for each T. pretiosum female, at temperatures of 18, 20, 22, 25, 28, 30 and 32°C. All life stages of T. pretiosum were observed under the given temperature conditions. The optimum temperature for the parasitism of T. pretiosum was 25°C, and the highest longevity was found at the same temperature. The highest parasitoid emergence rates occurred at temperatures of 22, 25 and 28°C. The highest proportion of T. pretiosum individuals emerged per egg was observed at 18°C. Concerning the sex ratio, the highest proportion of females occurred at 28°C, and the highest percentage of parasitism viability was observed at this same temperature. The lowest thermal threshold for total preimaginal development and thermal requirements of T. pretiosum were 10.82°C and 134.55 degree-days, respectively. The estimated number of generations of T. pretiosum in the average temperatures of municipality of Bom Jesus, state of Piauí, Brazil is four per month.O objetivo deste trabalho foi determinar os parâmetros biológicos e as exigências térmicas de Trichogramma pretiosum linhagem TM sobre ovos de Helicoverpa armigera. Para cada fêmea, foi oferecida uma cartela contendo 20 ovos de H. armigera, às temperaturas de 18, 20, 22, 25, 28, 30 e 32°C. Todos os estádios de vida de T. pretiosum foram observados sob as dadas condições de temperatura. A temperatura ótima para o parasitismo de T. pretiosum foi de 25°C e a maior longevidade foi verificada à mesma temperatura. As maiores taxas de emergência do parasitoide foram às temperaturas de 22, 25 e 28°C. A maior proporção de indivíduos de T. pretiosum emergidos por ovo foi observada a 18°C. Quanto à razão sexual, a maior proporção de fêmeas ocorreu a 28°C, e o maior percentual de viabilidade do parasitismo foi observado à mesma temperatura. O limiar térmico inferior para o desenvolvimento pré-imaginal total e as exigências térmicas de T. pretiosum foram de 10,82°C e 134,55 grau-dias, respectivamente. O número estimado de gerações de T. pretiosum às temperaturas médias do Município de Bom Jesus, Piauí, foi de 4 por mêsPesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCarvalho, Gabriel dos SantosSilva, Luciana BarbozaReis, Soislan SousaVeras, Maisa SousaCarneiro, ElianeAlmeida, Mayra Layra dos SantosSilva, Alexandre Faria daLopes, Gleidyane Novais2017-12-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/25131Pesquisa Agropecuaria Brasileira; v.52, n.11, nov. 2017; 961-968Pesquisa Agropecuária Brasileira; v.52, n.11, nov. 2017; 961-9681678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/25131/14032https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25131/16934Direitos autorais 2017 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2018-01-04T11:40:52Zoai:ojs.seer.sct.embrapa.br:article/25131Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2018-01-04T11:40:52Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
Parâmetros biológicos e exigências térmicas de Trichogramma pretiosum sobre ovos de Helicoverpa armigera
title Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
spellingShingle Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
Carvalho, Gabriel dos Santos
Trichogrammatidae; biological control; parasitoid; temperature
Trichogrammatidae; controle biológico; parasitoide; temperatura
title_short Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
title_full Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
title_fullStr Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
title_full_unstemmed Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
title_sort Biological parameters and thermal requirements of Trichogramma pretiosum reared on Helicoverpa armigera eggs
author Carvalho, Gabriel dos Santos
author_facet Carvalho, Gabriel dos Santos
Silva, Luciana Barboza
Reis, Soislan Sousa
Veras, Maisa Sousa
Carneiro, Eliane
Almeida, Mayra Layra dos Santos
Silva, Alexandre Faria da
Lopes, Gleidyane Novais
author_role author
author2 Silva, Luciana Barboza
Reis, Soislan Sousa
Veras, Maisa Sousa
Carneiro, Eliane
Almeida, Mayra Layra dos Santos
Silva, Alexandre Faria da
Lopes, Gleidyane Novais
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Carvalho, Gabriel dos Santos
Silva, Luciana Barboza
Reis, Soislan Sousa
Veras, Maisa Sousa
Carneiro, Eliane
Almeida, Mayra Layra dos Santos
Silva, Alexandre Faria da
Lopes, Gleidyane Novais
dc.subject.por.fl_str_mv Trichogrammatidae; biological control; parasitoid; temperature
Trichogrammatidae; controle biológico; parasitoide; temperatura
topic Trichogrammatidae; biological control; parasitoid; temperature
Trichogrammatidae; controle biológico; parasitoide; temperatura
description The objective of this work was to determine the biological parameters and thermal requirements of Trichogramma pretiosum TM strain reared on Helicoverpa armigera eggs. A card containing 20 eggs of H. armigera was offered for each T. pretiosum female, at temperatures of 18, 20, 22, 25, 28, 30 and 32°C. All life stages of T. pretiosum were observed under the given temperature conditions. The optimum temperature for the parasitism of T. pretiosum was 25°C, and the highest longevity was found at the same temperature. The highest parasitoid emergence rates occurred at temperatures of 22, 25 and 28°C. The highest proportion of T. pretiosum individuals emerged per egg was observed at 18°C. Concerning the sex ratio, the highest proportion of females occurred at 28°C, and the highest percentage of parasitism viability was observed at this same temperature. The lowest thermal threshold for total preimaginal development and thermal requirements of T. pretiosum were 10.82°C and 134.55 degree-days, respectively. The estimated number of generations of T. pretiosum in the average temperatures of municipality of Bom Jesus, state of Piauí, Brazil is four per month.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-18
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/25131
url https://seer.sct.embrapa.br/index.php/pab/article/view/25131
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/25131/14032
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/25131/16934
dc.rights.driver.fl_str_mv Direitos autorais 2017 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2017 Pesquisa Agropecuária Brasileira
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.52, n.11, nov. 2017; 961-968
Pesquisa Agropecuária Brasileira; v.52, n.11, nov. 2017; 961-968
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
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instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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