Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bragantia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200011 |
Resumo: | Diatraea saccharalis Fabr. (Lepidoptera: Crambidae) is a major sugarcane pest in Brazil. The management of infested areas is based on the release of Cotesia flavipes (Cameron) (Hymenoptera: Braconidae), a parasitoid of D. saccharalis larvae, but there are doubts about the effectiveness of C. flavipes, primarily regarding its rate of dispersal in sugarcane fields. Thus, the objective of this study was to evaluate the dispersal of C. flavipes in a sugarcane field and suggest a release method that provides higher parasitoid efficiency. The study was carried out in four areas of approximately 1 ha, in which stalk pieces containing 20 D. saccharalis larvae were distributed in a rectangular grid, and 12,000 C. flavipes adults were released at four points, that were 50 m apart and 25 m from the field border. Three days later, the D. saccharalis larvae were recovered and kept in the laboratory until they reached pupal stage or C. flavipes emergence. Parasitism varied from 13.2% to 42.8%. The random distribution of parasitized larvae was found in one assay. In three areas, the parasitized larvae showed an aggregated distribution, with a range of 15 to 25 m. Since the parasite's success is directly linked to parasitoid dispersion, it would be interesting to move the release points to 30 m from each other because the dispersal may happen in a 15 m radius. |
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Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releasessugarcane borerDiatraea saccharalisbiological controlaggregationpest managementDiatraea saccharalis Fabr. (Lepidoptera: Crambidae) is a major sugarcane pest in Brazil. The management of infested areas is based on the release of Cotesia flavipes (Cameron) (Hymenoptera: Braconidae), a parasitoid of D. saccharalis larvae, but there are doubts about the effectiveness of C. flavipes, primarily regarding its rate of dispersal in sugarcane fields. Thus, the objective of this study was to evaluate the dispersal of C. flavipes in a sugarcane field and suggest a release method that provides higher parasitoid efficiency. The study was carried out in four areas of approximately 1 ha, in which stalk pieces containing 20 D. saccharalis larvae were distributed in a rectangular grid, and 12,000 C. flavipes adults were released at four points, that were 50 m apart and 25 m from the field border. Three days later, the D. saccharalis larvae were recovered and kept in the laboratory until they reached pupal stage or C. flavipes emergence. Parasitism varied from 13.2% to 42.8%. The random distribution of parasitized larvae was found in one assay. In three areas, the parasitized larvae showed an aggregated distribution, with a range of 15 to 25 m. Since the parasite's success is directly linked to parasitoid dispersion, it would be interesting to move the release points to 30 m from each other because the dispersal may happen in a 15 m radius.Instituto Agronômico de Campinas2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200011Bragantia v.73 n.2 2014reponame:Bragantiainstname:Instituto Agronômico de Campinas (IAC)instacron:IAC10.1590/brag.2014.023info:eu-repo/semantics/openAccessDinardo-Miranda,Leila LuciFracasso,Juliano VilelaCosta,Viviane Pereira daLopes,Diego Olympio Teixeiraeng2014-07-14T00:00:00Zoai:scielo:S0006-87052014000200011Revistahttps://www.scielo.br/j/brag/https://old.scielo.br/oai/scielo-oai.phpbragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br1678-44990006-8705opendoar:2014-07-14T00:00Bragantia - Instituto Agronômico de Campinas (IAC)false |
dc.title.none.fl_str_mv |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases |
title |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases |
spellingShingle |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases Dinardo-Miranda,Leila Luci sugarcane borer Diatraea saccharalis biological control aggregation pest management |
title_short |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases |
title_full |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases |
title_fullStr |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases |
title_full_unstemmed |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases |
title_sort |
Dispersal of Cotesia flavipes in sugarcane field and implications for parasitoid releases |
author |
Dinardo-Miranda,Leila Luci |
author_facet |
Dinardo-Miranda,Leila Luci Fracasso,Juliano Vilela Costa,Viviane Pereira da Lopes,Diego Olympio Teixeira |
author_role |
author |
author2 |
Fracasso,Juliano Vilela Costa,Viviane Pereira da Lopes,Diego Olympio Teixeira |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Dinardo-Miranda,Leila Luci Fracasso,Juliano Vilela Costa,Viviane Pereira da Lopes,Diego Olympio Teixeira |
dc.subject.por.fl_str_mv |
sugarcane borer Diatraea saccharalis biological control aggregation pest management |
topic |
sugarcane borer Diatraea saccharalis biological control aggregation pest management |
description |
Diatraea saccharalis Fabr. (Lepidoptera: Crambidae) is a major sugarcane pest in Brazil. The management of infested areas is based on the release of Cotesia flavipes (Cameron) (Hymenoptera: Braconidae), a parasitoid of D. saccharalis larvae, but there are doubts about the effectiveness of C. flavipes, primarily regarding its rate of dispersal in sugarcane fields. Thus, the objective of this study was to evaluate the dispersal of C. flavipes in a sugarcane field and suggest a release method that provides higher parasitoid efficiency. The study was carried out in four areas of approximately 1 ha, in which stalk pieces containing 20 D. saccharalis larvae were distributed in a rectangular grid, and 12,000 C. flavipes adults were released at four points, that were 50 m apart and 25 m from the field border. Three days later, the D. saccharalis larvae were recovered and kept in the laboratory until they reached pupal stage or C. flavipes emergence. Parasitism varied from 13.2% to 42.8%. The random distribution of parasitized larvae was found in one assay. In three areas, the parasitized larvae showed an aggregated distribution, with a range of 15 to 25 m. Since the parasite's success is directly linked to parasitoid dispersion, it would be interesting to move the release points to 30 m from each other because the dispersal may happen in a 15 m radius. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200011 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052014000200011 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/brag.2014.023 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Agronômico de Campinas |
publisher.none.fl_str_mv |
Instituto Agronômico de Campinas |
dc.source.none.fl_str_mv |
Bragantia v.73 n.2 2014 reponame:Bragantia instname:Instituto Agronômico de Campinas (IAC) instacron:IAC |
instname_str |
Instituto Agronômico de Campinas (IAC) |
instacron_str |
IAC |
institution |
IAC |
reponame_str |
Bragantia |
collection |
Bragantia |
repository.name.fl_str_mv |
Bragantia - Instituto Agronômico de Campinas (IAC) |
repository.mail.fl_str_mv |
bragantia@iac.sp.gov.br||bragantia@iac.sp.gov.br |
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1754193303755030528 |