Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn

Detalhes bibliográficos
Autor(a) principal: Neto, Fausto da Costa Matos
Data de Publicação: 2004
Outros Autores: Cruz, Ivan, Zanuncio, José Cola, Silva, Carlos Henrique Osório, Picanço, Marcelo Coutinho
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/6879
Resumo: Parasitism by Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and consequent reduction of production losses were evaluated on caged corn plants in the field. Treatments consisted of plots infested with 0 (control), 15 and 30 pairs of C. flavicincta with egg masses per cage and plot infested without cage and liberation of the parasitoid. Parasitoid release was done when S. frugiperda larvae were three-day-old. Fifty corn plants (40%) per plot were collected seven days after infestation and S. frugiperda larvae present were reared in glass cups on an artificial diet. Number of S. frugiperda larvae was reduced by C. flavicincta but mortality of the pest and parasitoid sex ratio in laboratory were similar among treatments. Total progeny and female production from collected larvae were similar among densities of released parasitoid. Parasitism rate was higher on 30 than on 15 pairs of C. flavicincta.  Damage on corn plants at seven and 14 days after S. frugiperda infestation had similar grades at 0, 15 or 30 C. flavicincta pairs and higher values than the plots without cage. Damage by S. frugiperda was lower at 30 C. flavicincta pairs after 21 days of infestation. Final stand, stand reduction by plant death and corn productivity were similar among treatments.
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spelling Parasitism by Campoletis flavicincta on Spodoptera frugiperda in cornParasitismo de Campoletis flavicincta sobre Spodoptera frugiperda em plantas de milhofield cage evaluation; corn pests; biological control; parasitoid density; Ichneumonidaeavaliação em gaiola de campo; pragas do milho; controle biológico; densidade do parasitóide; IchneumonidaeParasitism by Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and consequent reduction of production losses were evaluated on caged corn plants in the field. Treatments consisted of plots infested with 0 (control), 15 and 30 pairs of C. flavicincta with egg masses per cage and plot infested without cage and liberation of the parasitoid. Parasitoid release was done when S. frugiperda larvae were three-day-old. Fifty corn plants (40%) per plot were collected seven days after infestation and S. frugiperda larvae present were reared in glass cups on an artificial diet. Number of S. frugiperda larvae was reduced by C. flavicincta but mortality of the pest and parasitoid sex ratio in laboratory were similar among treatments. Total progeny and female production from collected larvae were similar among densities of released parasitoid. Parasitism rate was higher on 30 than on 15 pairs of C. flavicincta.  Damage on corn plants at seven and 14 days after S. frugiperda infestation had similar grades at 0, 15 or 30 C. flavicincta pairs and higher values than the plots without cage. Damage by S. frugiperda was lower at 30 C. flavicincta pairs after 21 days of infestation. Final stand, stand reduction by plant death and corn productivity were similar among treatments.O objetivo deste trabalho foi avaliar o potencial do parasitóide Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) no controle de Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) em plantas de milho protegidas por gaiolas no campo. Os tratamentos consistiram de parcelas infectadas com 0 (controle), 15 e 30 casais de C. flavicincta liberados por gaiola e parcela infestada, além de parcelas sem gaiola e sem liberação do parasitóide. C. flavicincta foi liberado quando as larvas de S. frugiperda estavam com três dias de idade. Em cada parcela, 40% das plantas foram colhidas sete dias após a infestação, e as larvas de S. frugiperda presentes foram transferidas para copos com dieta artificial. C. flavicincta reduziu o número de larvas, mas a mortalidade natural das larvas e a razão sexual do parasitóide emergido em laboratório foram semelhantes entre tratamentos. A produção de progênie e de progênie fêmea por C. flavicincta foi semelhante nas amostras de 15 e 30 casais, mas a taxa de parasitismo foi maior nas amostras de 30 casais do que nas de 15. Os danos às plantas por larvas de S. frugiperda, aos sete e 14 dias após a infestação, foram semelhantes entre as parcelas com 0, 15 ou 30 casais de C. flavicincta, maiores do que nas parcelas sem gaiola. Esses danos foram menores nas parcelas de 30 casais do parasitóide, após 21 dias da infestação. O estande final, redução no estande pela morte das plantas e a produtividade do milho foram semelhantes entre tratamentos.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraNeto, Fausto da Costa MatosCruz, IvanZanuncio, José ColaSilva, Carlos Henrique OsórioPicanço, Marcelo Coutinho2004-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6879Pesquisa Agropecuaria Brasileira; v.39, n.11, nov. 2004; 1077-1081Pesquisa Agropecuária Brasileira; v.39, n.11, nov. 2004; 1077-10811678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/6879/3935info:eu-repo/semantics/openAccess2014-09-01T19:24:51Zoai:ojs.seer.sct.embrapa.br:article/6879Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-01T19:24:51Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
Parasitismo de Campoletis flavicincta sobre Spodoptera frugiperda em plantas de milho
title Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
spellingShingle Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
Neto, Fausto da Costa Matos
field cage evaluation; corn pests; biological control; parasitoid density; Ichneumonidae
avaliação em gaiola de campo; pragas do milho; controle biológico; densidade do parasitóide; Ichneumonidae
title_short Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
title_full Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
title_fullStr Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
title_full_unstemmed Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
title_sort Parasitism by Campoletis flavicincta on Spodoptera frugiperda in corn
author Neto, Fausto da Costa Matos
author_facet Neto, Fausto da Costa Matos
Cruz, Ivan
Zanuncio, José Cola
Silva, Carlos Henrique Osório
Picanço, Marcelo Coutinho
author_role author
author2 Cruz, Ivan
Zanuncio, José Cola
Silva, Carlos Henrique Osório
Picanço, Marcelo Coutinho
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Neto, Fausto da Costa Matos
Cruz, Ivan
Zanuncio, José Cola
Silva, Carlos Henrique Osório
Picanço, Marcelo Coutinho
dc.subject.por.fl_str_mv field cage evaluation; corn pests; biological control; parasitoid density; Ichneumonidae
avaliação em gaiola de campo; pragas do milho; controle biológico; densidade do parasitóide; Ichneumonidae
topic field cage evaluation; corn pests; biological control; parasitoid density; Ichneumonidae
avaliação em gaiola de campo; pragas do milho; controle biológico; densidade do parasitóide; Ichneumonidae
description Parasitism by Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) on Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) and consequent reduction of production losses were evaluated on caged corn plants in the field. Treatments consisted of plots infested with 0 (control), 15 and 30 pairs of C. flavicincta with egg masses per cage and plot infested without cage and liberation of the parasitoid. Parasitoid release was done when S. frugiperda larvae were three-day-old. Fifty corn plants (40%) per plot were collected seven days after infestation and S. frugiperda larvae present were reared in glass cups on an artificial diet. Number of S. frugiperda larvae was reduced by C. flavicincta but mortality of the pest and parasitoid sex ratio in laboratory were similar among treatments. Total progeny and female production from collected larvae were similar among densities of released parasitoid. Parasitism rate was higher on 30 than on 15 pairs of C. flavicincta.  Damage on corn plants at seven and 14 days after S. frugiperda infestation had similar grades at 0, 15 or 30 C. flavicincta pairs and higher values than the plots without cage. Damage by S. frugiperda was lower at 30 C. flavicincta pairs after 21 days of infestation. Final stand, stand reduction by plant death and corn productivity were similar among treatments.
publishDate 2004
dc.date.none.fl_str_mv 2004-11-01
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/6879
url https://seer.sct.embrapa.br/index.php/pab/article/view/6879
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/6879/3935
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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.39, n.11, nov. 2004; 1077-1081
Pesquisa Agropecuária Brasileira; v.39, n.11, nov. 2004; 1077-1081
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
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)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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