Marigold (Tagetes erecta L.) as an attractive crop to natural enemies in onion fields
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , |
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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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) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
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) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835138947547136 |