Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields

Detalhes bibliográficos
Autor(a) principal: Silveira, Luís Cláudio Paterno
Data de Publicação: 2009
Outros Autores: Berti Filho, Evoneo, Pierre, Leonardo Santa Rosa, Peres, Fernanda Salles Cunha, Louzada, Julio Neil Cassa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/38682
Resumo: Onion is the third most grown vegetable crop in São Paulo state, Brazil. Organic onion farming is expected to increase in the state due to the increasing demand. Pest management in organic onion farming is based on plant extracts with insecticide effects. However, the efficacy of such plant extracts has not been proved yet, and it was observed that they do negatively affect natural enemies. Plants surrounding onion fields, and that are attractive to natural enemies, may be a good option to farmers, since they may lead to increased diversity of arthropod species and, consequently, the natural control of pest populations. This study deals with the effect of marigold plants as a resource plant to natural enemies in onion fields. The experiment was set in a certified organic farm using marigold rows at a center of an onion field. Samples were taken from marigold and the onion plants 5 m (near) and 30 m (far) from the flowering strips. Higher numbers of arthropod pests were observed in onion plants 30 m from the marigold strip, while higher numbers of predators and parasitoids were found at 5 m distance. Species richness and Shannon's diversity index were higher at 5 m from marigold. Therefore, marigold rows next to onion fields resulted in higher number of entomophagous species, potentially enhancing the natural control of onion pests. In the study field, marigold strips may be an alternative to crop sprays for organic control of onion pests.
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spelling Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fieldsCravo-de-defunto (Tagetes erecta L.) como cultura atrativa para inimigos naturais em cultivo de cebolaCebola - Doenças e pragasCebola - Manejo de pragasPredadores - ControleCebola - CultivoOnion - Diseases and pestsOnion - Pest managementPredators - ControlOnion - CultivationOnion is the third most grown vegetable crop in São Paulo state, Brazil. Organic onion farming is expected to increase in the state due to the increasing demand. Pest management in organic onion farming is based on plant extracts with insecticide effects. However, the efficacy of such plant extracts has not been proved yet, and it was observed that they do negatively affect natural enemies. Plants surrounding onion fields, and that are attractive to natural enemies, may be a good option to farmers, since they may lead to increased diversity of arthropod species and, consequently, the natural control of pest populations. This study deals with the effect of marigold plants as a resource plant to natural enemies in onion fields. The experiment was set in a certified organic farm using marigold rows at a center of an onion field. Samples were taken from marigold and the onion plants 5 m (near) and 30 m (far) from the flowering strips. Higher numbers of arthropod pests were observed in onion plants 30 m from the marigold strip, while higher numbers of predators and parasitoids were found at 5 m distance. Species richness and Shannon's diversity index were higher at 5 m from marigold. Therefore, marigold rows next to onion fields resulted in higher number of entomophagous species, potentially enhancing the natural control of onion pests. In the study field, marigold strips may be an alternative to crop sprays for organic control of onion pests.A cebola é a terceira hortaliça mais cultivada em São Paulo, cujo cultivo orgânico tende a crescer devido ao grande mercado consumidor existente. O manejo das pragas na cebolicultura orgânica baseia-se nos extratos de plantas inseticidas que, além de terem eficiência não comprovada, podem afetar negativamente os inimigos naturais. A utilização de plantas atrativas a inimigos naturais no entorno dos cultivos de cebola pode ser uma boa opção para os produtores, pois potencialmente aumentam a diversidade da artropodofauna e podem regular naturalmente as populações de espécies pragas. Verificou-se o efeito de linhas de cravo-de-defunto (Tagetes erecta L.) como cultura atrativa a inimigos naturais em campos de cebola. O experimento foi realizado em propriedade orgânica certificada, instalando-se linhas de cravo-de-defunto nas bordaduras de dois campos de cebola. Os tratamentos foram definidos coletando-se amostras nas plantas de cebola próximas às linhas da atrativa (5m) e distante das linhas (30 m). De maneira geral, observou-se maior quantidade de artrópodes fitófagos nas plantas de cebola longe da faixa atrativa e, inversamente, maior quantidade de inimigos naturais próximos à faixa. A riqueza de espécies também foi maior nas coletas próximas, o mesmo valendo para o índice de diversidade de Shannon. Portanto, a manutenção de linhas de cravo-de-defunto próximas ao cultivo de cebola promoveu maior riqueza e diversidade de artrópodes, bem como maior número de entomófagos, resultando em menor presença de fitófagos nas plantas, auxiliando na regulação natural das pragas da cultura.Escola Superior de Agricultura "Luiz de Queiroz"2020-01-27T11:14:10Z2020-01-27T11:14:10Z2009-11info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSILVEIRA, L. C. P.; BERTI FILHO, E.; PIERRE, L. S. R.; PERES, F. S. C.; LOUZADA, J. N. C. Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields. Scientia Agricola, Piracicaba, v. 66, n. 6, p. 780-787, Nov./Dec. 2009.http://repositorio.ufla.br/jspui/handle/1/38682Scientia Agricolareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessSilveira, Luís Cláudio PaternoBerti Filho, EvoneoPierre, Leonardo Santa RosaPeres, Fernanda Salles CunhaLouzada, Julio Neil Cassaeng2020-01-27T11:14:10Zoai:localhost:1/38682Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-01-27T11:14:10Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
Cravo-de-defunto (Tagetes erecta L.) como cultura atrativa para inimigos naturais em cultivo de cebola
title Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
spellingShingle Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
Silveira, Luís Cláudio Paterno
Cebola - Doenças e pragas
Cebola - Manejo de pragas
Predadores - Controle
Cebola - Cultivo
Onion - Diseases and pests
Onion - Pest management
Predators - Control
Onion - Cultivation
title_short Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
title_full Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
title_fullStr Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
title_full_unstemmed Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
title_sort Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
author Silveira, Luís Cláudio Paterno
author_facet Silveira, Luís Cláudio Paterno
Berti Filho, Evoneo
Pierre, Leonardo Santa Rosa
Peres, Fernanda Salles Cunha
Louzada, Julio Neil Cassa
author_role author
author2 Berti Filho, Evoneo
Pierre, Leonardo Santa Rosa
Peres, Fernanda Salles Cunha
Louzada, Julio Neil Cassa
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Silveira, Luís Cláudio Paterno
Berti Filho, Evoneo
Pierre, Leonardo Santa Rosa
Peres, Fernanda Salles Cunha
Louzada, Julio Neil Cassa
dc.subject.por.fl_str_mv Cebola - Doenças e pragas
Cebola - Manejo de pragas
Predadores - Controle
Cebola - Cultivo
Onion - Diseases and pests
Onion - Pest management
Predators - Control
Onion - Cultivation
topic Cebola - Doenças e pragas
Cebola - Manejo de pragas
Predadores - Controle
Cebola - Cultivo
Onion - Diseases and pests
Onion - Pest management
Predators - Control
Onion - Cultivation
description Onion is the third most grown vegetable crop in São Paulo state, Brazil. Organic onion farming is expected to increase in the state due to the increasing demand. Pest management in organic onion farming is based on plant extracts with insecticide effects. However, the efficacy of such plant extracts has not been proved yet, and it was observed that they do negatively affect natural enemies. Plants surrounding onion fields, and that are attractive to natural enemies, may be a good option to farmers, since they may lead to increased diversity of arthropod species and, consequently, the natural control of pest populations. This study deals with the effect of marigold plants as a resource plant to natural enemies in onion fields. The experiment was set in a certified organic farm using marigold rows at a center of an onion field. Samples were taken from marigold and the onion plants 5 m (near) and 30 m (far) from the flowering strips. Higher numbers of arthropod pests were observed in onion plants 30 m from the marigold strip, while higher numbers of predators and parasitoids were found at 5 m distance. Species richness and Shannon's diversity index were higher at 5 m from marigold. Therefore, marigold rows next to onion fields resulted in higher number of entomophagous species, potentially enhancing the natural control of onion pests. In the study field, marigold strips may be an alternative to crop sprays for organic control of onion pests.
publishDate 2009
dc.date.none.fl_str_mv 2009-11
2020-01-27T11:14:10Z
2020-01-27T11:14:10Z
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 SILVEIRA, L. C. P.; BERTI FILHO, E.; PIERRE, L. S. R.; PERES, F. S. C.; LOUZADA, J. N. C. Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields. Scientia Agricola, Piracicaba, v. 66, n. 6, p. 780-787, Nov./Dec. 2009.
http://repositorio.ufla.br/jspui/handle/1/38682
identifier_str_mv SILVEIRA, L. C. P.; BERTI FILHO, E.; PIERRE, L. S. R.; PERES, F. S. C.; LOUZADA, J. N. C. Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields. Scientia Agricola, Piracicaba, v. 66, n. 6, p. 780-787, Nov./Dec. 2009.
url http://repositorio.ufla.br/jspui/handle/1/38682
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial 4.0 International
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
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instname_str Universidade Federal de Lavras (UFLA)
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reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
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