Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62 |
Resumo: | This study aimed to evaluate the potential of Chrysoperla externa (Hagen, 1861) in controlling nymphs of Bemisia tabaci (Gennadius, 1889), biotype B, in tomato plants. Ninety-six pots, each with one whiteflyfree plant, were placed in cages at greenhouse and each plant was infested with 100 adult whiteflies for 24 hours. In the first and eighth days after nymph eclosion, infested plants were inoculated with one, five and ten larvae of the first, second and third C. externa instars, excepting the control plants. The number of nymphs that escaped predation was counted on the eleventh day after prey eclosion. Totally casualized delineation was used, with 3 x 4 factorial scheme and eight repetitions. The C. externa larvae released in the first day after whitefly nymph eclosion were most efficient in reducing prey population at 10 larvae per plant, ensuring roughly 50% pest control. When released on the eight day after nymph eclosion, at densities of five and ten C. externa larvae per plant, a pest density reduction of approximately 40% was observed. Therefore, releasing C. externa larvae on tomato plants kept individually in cages is efficient to control B-biotype B. tabaci. |
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Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62Potencial de Chrysoperla externa (Hagen) no controle de Bemisia tabaci (Gennadius) biótipo B em tomateiro - DOI: 10.4025/actasciagron.v29i1.62controle biológicocrisopídeomosca-brancacultivo protegidoThis study aimed to evaluate the potential of Chrysoperla externa (Hagen, 1861) in controlling nymphs of Bemisia tabaci (Gennadius, 1889), biotype B, in tomato plants. Ninety-six pots, each with one whiteflyfree plant, were placed in cages at greenhouse and each plant was infested with 100 adult whiteflies for 24 hours. In the first and eighth days after nymph eclosion, infested plants were inoculated with one, five and ten larvae of the first, second and third C. externa instars, excepting the control plants. The number of nymphs that escaped predation was counted on the eleventh day after prey eclosion. Totally casualized delineation was used, with 3 x 4 factorial scheme and eight repetitions. The C. externa larvae released in the first day after whitefly nymph eclosion were most efficient in reducing prey population at 10 larvae per plant, ensuring roughly 50% pest control. When released on the eight day after nymph eclosion, at densities of five and ten C. externa larvae per plant, a pest density reduction of approximately 40% was observed. Therefore, releasing C. externa larvae on tomato plants kept individually in cages is efficient to control B-biotype B. tabaci.Objetivou-se avaliar o potencial de Chrysoperla externa (Hagen, 1861) no controle de ninfas de Bemisia tabaci (Gennadius, 1889) biótipo B em tomateiro. Foram colocados 96 vasos com uma planta, isenta de mosca-branca, em gaiolas mantidas em casa de vegetação. Em seguida, cada planta foi infestada por 100 adultos do aleirodídeo por 24 horas. No primeiro e oitavo dias após a eclosão das ninfas, liberou-se uma, cinco e dez larvas de primeiro, segundo e terceiro ínstares de C. externa nos tomateiros infestados, exceto nas testemunhas. A contagem das ninfas que escaparam � predação foi efetuada no 11o dia após a eclosão da presa. Utilizou-se o delineamento inteiramente casualizado em esquema fatorial, com oito repetições. As larvas de C. externa, liberadas no primeiro dia após a eclosão das ninfas de mosca-branca, foram eficientes na redução da população da presa quando foi utilizado 10 larvas por planta, assegurando cerca de 50% de controle da praga. Quando o predador foi liberado oito dias após a eclosão das ninfas, nas densidades de cinco e dez larvas de C. externa por planta, verificou-se redução na densidade populacional da praga próxima a 40%. Assim, a liberação de larvas de C. externa em tomateiros individualizados em gaiolas denota ser eficiente no controle de B. tabaci biótipo B.Universidade Estadual de Maringá2007-08-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/6210.4025/actasciagron.v29i1.62Acta Scientiarum. Agronomy; Vol 29 No 1 (2007); 29-32Acta Scientiarum. Agronomy; v. 29 n. 1 (2007); 29-321807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62/25Auad, Alexander MachadoCarvalho, César FreireSouza, BrígidaSimões, Amanda DanielaOliveira, Simone AlvesBraga, André Luiz FurtadoFerreira, Roberta Botelhoinfo:eu-repo/semantics/openAccess2022-11-23T18:37:00Zoai:periodicos.uem.br/ojs:article/62Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:37Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 Potencial de Chrysoperla externa (Hagen) no controle de Bemisia tabaci (Gennadius) biótipo B em tomateiro - DOI: 10.4025/actasciagron.v29i1.62 |
title |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 |
spellingShingle |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 Auad, Alexander Machado controle biológico crisopídeo mosca-branca cultivo protegido |
title_short |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 |
title_full |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 |
title_fullStr |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 |
title_full_unstemmed |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 |
title_sort |
Potential of Chrysoperla externa (Hagen) at B-biotype Bemisia tabaci (Gennadius) nymphs control in tomato plants - DOI: 10.4025/actasciagron.v29i1.62 |
author |
Auad, Alexander Machado |
author_facet |
Auad, Alexander Machado Carvalho, César Freire Souza, Brígida Simões, Amanda Daniela Oliveira, Simone Alves Braga, André Luiz Furtado Ferreira, Roberta Botelho |
author_role |
author |
author2 |
Carvalho, César Freire Souza, Brígida Simões, Amanda Daniela Oliveira, Simone Alves Braga, André Luiz Furtado Ferreira, Roberta Botelho |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Auad, Alexander Machado Carvalho, César Freire Souza, Brígida Simões, Amanda Daniela Oliveira, Simone Alves Braga, André Luiz Furtado Ferreira, Roberta Botelho |
dc.subject.por.fl_str_mv |
controle biológico crisopídeo mosca-branca cultivo protegido |
topic |
controle biológico crisopídeo mosca-branca cultivo protegido |
description |
This study aimed to evaluate the potential of Chrysoperla externa (Hagen, 1861) in controlling nymphs of Bemisia tabaci (Gennadius, 1889), biotype B, in tomato plants. Ninety-six pots, each with one whiteflyfree plant, were placed in cages at greenhouse and each plant was infested with 100 adult whiteflies for 24 hours. In the first and eighth days after nymph eclosion, infested plants were inoculated with one, five and ten larvae of the first, second and third C. externa instars, excepting the control plants. The number of nymphs that escaped predation was counted on the eleventh day after prey eclosion. Totally casualized delineation was used, with 3 x 4 factorial scheme and eight repetitions. The C. externa larvae released in the first day after whitefly nymph eclosion were most efficient in reducing prey population at 10 larvae per plant, ensuring roughly 50% pest control. When released on the eight day after nymph eclosion, at densities of five and ten C. externa larvae per plant, a pest density reduction of approximately 40% was observed. Therefore, releasing C. externa larvae on tomato plants kept individually in cages is efficient to control B-biotype B. tabaci. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-08-20 |
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 |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62 10.4025/actasciagron.v29i1.62 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62 |
identifier_str_mv |
10.4025/actasciagron.v29i1.62 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/62/25 |
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 |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 29 No 1 (2007); 29-32 Acta Scientiarum. Agronomy; v. 29 n. 1 (2007); 29-32 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
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1799305901999390720 |