Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro

Detalhes bibliográficos
Autor(a) principal: Alves, Dejane Santos
Data de Publicação: 2011
Outros Autores: Oliveira, Denilson Ferreira, Carvalho, Geraldo Andrade, Santos, Mírian Aparecida Isidro
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200004
http://repositorio.ufla.br/jspui/handle/1/7375
Resumo: The objective of this study was to evaluate the effect of Coffea racemosa Lour. methanolic extract , a wild coffee specie that presents resistance against the coffee leaf-miner, a major pest of coffee crop. The methanol extract of C. racemosa leaves was sprayed on coffee seedlings, Coffea arabica cv. Catuaí, in greenhouse, which were exposed to adults of L. coffeella for oviposition in free choice test. Plants treated were less preferred for oviposition. An ovicidal assay was carried out by spraying the methanol extract on C. arabica seedlings containing L. coffeela eggs on their leaves. The experiments were conducted in a completely randomized design with five replicates. Larvae hatching out from treated eggs were significantly reduced by the extract and non viable eggs presented some anomalies on their external surfaces according to analyses by scanning electron microscopy. However, the adults derived from treated eggs did not have the percentage of emergence, sex ratio and oviposition affected by the treatment. The results show that C. racemosa presents as a promising alternative to control the coffee leaf-miner, being necessary new studies to isolate and caracterize the bioactive substances against this pest.
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spelling Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiroCoffea racemosa extract as an alternative for the control of coffee leaf minerLeucoptera coffeellaInseticida botânicoCaféProdutos naturaisBotanical insecticideCoffeeNatural productsThe objective of this study was to evaluate the effect of Coffea racemosa Lour. methanolic extract , a wild coffee specie that presents resistance against the coffee leaf-miner, a major pest of coffee crop. The methanol extract of C. racemosa leaves was sprayed on coffee seedlings, Coffea arabica cv. Catuaí, in greenhouse, which were exposed to adults of L. coffeella for oviposition in free choice test. Plants treated were less preferred for oviposition. An ovicidal assay was carried out by spraying the methanol extract on C. arabica seedlings containing L. coffeela eggs on their leaves. The experiments were conducted in a completely randomized design with five replicates. Larvae hatching out from treated eggs were significantly reduced by the extract and non viable eggs presented some anomalies on their external surfaces according to analyses by scanning electron microscopy. However, the adults derived from treated eggs did not have the percentage of emergence, sex ratio and oviposition affected by the treatment. The results show that C. racemosa presents as a promising alternative to control the coffee leaf-miner, being necessary new studies to isolate and caracterize the bioactive substances against this pest.Objetivou-se, com o presente trabalho, verificar o efeito do extrato metanólico de Coffea racemosa Lour., espécie silvestre de cafeeiro portadora de resistência a uma das principais pragas da cultura cafeeira, o bicho-mineiro. Inicialmente, o extrato metanólico das folhas de C. racemosa foi pulverizado em mudas de cafeeiro Coffea arabica cv. Catuaí, em casa-de-vegetação, as quais foram expostas a adultos de L. coffeella para o teste de oviposição com chance de escolha. Observou-se que as plantas tratadas foram menos preferidas para oviposição. A seguir, realizou-se o teste de efeito ovicida, no qual mudas de C. arabica contendo ovos do bicho-mineiro foram pulverizadas com o mesmo extrato. Os experimentos foram conduzidos em delineamento inteiramente casualizado com cinco repetições. Verificou-se redução significativa na eclosão de larvas, e segundo análise por microscopia eletrônica de varredura, os ovos não viáveis apresentaram anomalias nas superfícies externas. Entretanto, os adultos provenientes de ovos tratados não foram afetados na percentagem de emergência, razão sexual e oviposição. Os resultados obtidos demonstram que C. racemosa apresenta-se como uma alternativa promissora ao controle do bicho-mineiro, necessitando, no entanto, de novos estudos para isolamento e identificação das substâncias bioativas.Editora da Universidade Federal de Lavras2011-04-012015-04-30T13:36:06Z2015-04-30T13:36:06Z2015-04-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200004ALVES, D. S. et al. Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro. Ciência e Agrotecnologia, Lavras, v. 35, n. 2, p. 250-258, mar./abr. 2011.http://repositorio.ufla.br/jspui/handle/1/7375Ciência e Agrotecnologia v.35 n.2 2011reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAlves, Dejane SantosOliveira, Denilson FerreiraCarvalho, Geraldo AndradeSantos, Mírian Aparecida Isidroporinfo:eu-repo/semantics/openAccess2016-06-21T17:36:31Zoai:localhost:1/7375Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2016-06-21T17:36:31Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
Coffea racemosa extract as an alternative for the control of coffee leaf miner
title Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
spellingShingle Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
Alves, Dejane Santos
Leucoptera coffeella
Inseticida botânico
Café
Produtos naturais
Botanical insecticide
Coffee
Natural products
title_short Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
title_full Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
title_fullStr Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
title_full_unstemmed Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
title_sort Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro
author Alves, Dejane Santos
author_facet Alves, Dejane Santos
Oliveira, Denilson Ferreira
Carvalho, Geraldo Andrade
Santos, Mírian Aparecida Isidro
author_role author
author2 Oliveira, Denilson Ferreira
Carvalho, Geraldo Andrade
Santos, Mírian Aparecida Isidro
author2_role author
author
author
dc.contributor.author.fl_str_mv Alves, Dejane Santos
Oliveira, Denilson Ferreira
Carvalho, Geraldo Andrade
Santos, Mírian Aparecida Isidro
dc.subject.por.fl_str_mv Leucoptera coffeella
Inseticida botânico
Café
Produtos naturais
Botanical insecticide
Coffee
Natural products
topic Leucoptera coffeella
Inseticida botânico
Café
Produtos naturais
Botanical insecticide
Coffee
Natural products
description The objective of this study was to evaluate the effect of Coffea racemosa Lour. methanolic extract , a wild coffee specie that presents resistance against the coffee leaf-miner, a major pest of coffee crop. The methanol extract of C. racemosa leaves was sprayed on coffee seedlings, Coffea arabica cv. Catuaí, in greenhouse, which were exposed to adults of L. coffeella for oviposition in free choice test. Plants treated were less preferred for oviposition. An ovicidal assay was carried out by spraying the methanol extract on C. arabica seedlings containing L. coffeela eggs on their leaves. The experiments were conducted in a completely randomized design with five replicates. Larvae hatching out from treated eggs were significantly reduced by the extract and non viable eggs presented some anomalies on their external surfaces according to analyses by scanning electron microscopy. However, the adults derived from treated eggs did not have the percentage of emergence, sex ratio and oviposition affected by the treatment. The results show that C. racemosa presents as a promising alternative to control the coffee leaf-miner, being necessary new studies to isolate and caracterize the bioactive substances against this pest.
publishDate 2011
dc.date.none.fl_str_mv 2011-04-01
2015-04-30T13:36:06Z
2015-04-30T13:36:06Z
2015-04-30
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 http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200004
ALVES, D. S. et al. Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro. Ciência e Agrotecnologia, Lavras, v. 35, n. 2, p. 250-258, mar./abr. 2011.
http://repositorio.ufla.br/jspui/handle/1/7375
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542011000200004
http://repositorio.ufla.br/jspui/handle/1/7375
identifier_str_mv ALVES, D. S. et al. Extrato de Coffea racemosa como alternativa no controle do bicho-mineiro do cafeeiro. Ciência e Agrotecnologia, Lavras, v. 35, n. 2, p. 250-258, mar./abr. 2011.
dc.language.iso.fl_str_mv por
language por
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 Editora da Universidade Federal de Lavras
publisher.none.fl_str_mv Editora da Universidade Federal de Lavras
dc.source.none.fl_str_mv Ciência e Agrotecnologia v.35 n.2 2011
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
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