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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
07/10/2014 |
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Data da última atualização: |
07/10/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBEIRO, L. P.; ZANARDI, O. Z.; VENDRAMIM, J. D.; YAMAMOTO, P. T. |
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Título: |
Comparative toxicity of an acetogenin-based extract and commercial pesticides against citrus red mite. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Experimental & Applied Acarology, Switzerland, On line, 2014. |
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Idioma: |
Português |
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Conteúdo: |
Acetogenins, a class of natural compounds produced by some Annonaceae
species, are potent inhibitors of mitochondrial electron transport systems. Although the
cellular respiration processes are an important biochemical site for the acaricidal action of
compounds, few studies have been performed to assess the bioactivity of acetogenin-based
biopesticides on spider mites, mainly against species that occur in orchards. Using
residual contact bioassays, this study aimed to evaluate the bioactivity of an ethanolic
extract from Annona mucosa seeds (ESAM) (Annonaceae) against the citrus red mite
Panonychus citri (McGregor) (Acari: Tetranychidae), an important pest of the Brazilian
citriculture. ESAM is a homemade biopesticide which was previously characterized by its
high concentration of acetogenins. It caused both high mortality of P. citri females
(LC50 = 7,295, 4,662, 3,463, and 2,608 mg l-1, after 48, 72, 96, and 120 h of exposure,
respectively) and significant oviposition deterrence (EC50 = 3.194,80 mg l-1). However,
there was no effect on P. citri female fertility (hatching rate). In addition, the ESAM
efficacy (in terms of its LC90) was compared with commercial acaricides/insecticides (at
its recommended rate) of both natural [Anosom 1 EC (annonin), Derisom 2 EC (karanjin),
and Azamax 1.2 EC (azadirachtin ? 3-tigloylazadirachtol)] and synthetic origin
[Envidor 24 SC (spirodiclofen)]. Based on all of the analyzed variables, the ESAM
exhibited levels of activity superior to other botanical commercial acaricides and similar
to spirodiclofen. Thus, our results indicate that ESAM may constitute a biorational
acaricide for citrus red mite integrated pest management in Brazilian citrus orchards,
particularly for local use. MenosAcetogenins, a class of natural compounds produced by some Annonaceae
species, are potent inhibitors of mitochondrial electron transport systems. Although the
cellular respiration processes are an important biochemical site for the acaricidal action of
compounds, few studies have been performed to assess the bioactivity of acetogenin-based
biopesticides on spider mites, mainly against species that occur in orchards. Using
residual contact bioassays, this study aimed to evaluate the bioactivity of an ethanolic
extract from Annona mucosa seeds (ESAM) (Annonaceae) against the citrus red mite
Panonychus citri (McGregor) (Acari: Tetranychidae), an important pest of the Brazilian
citriculture. ESAM is a homemade biopesticide which was previously characterized by its
high concentration of acetogenins. It caused both high mortality of P. citri females
(LC50 = 7,295, 4,662, 3,463, and 2,608 mg l-1, after 48, 72, 96, and 120 h of exposure,
respectively) and significant oviposition deterrence (EC50 = 3.194,80 mg l-1). However,
there was no effect on P. citri female fertility (hatching rate). In addition, the ESAM
efficacy (in terms of its LC90) was compared with commercial acaricides/insecticides (at
its recommended rate) of both natural [Anosom 1 EC (annonin), Derisom 2 EC (karanjin),
and Azamax 1.2 EC (azadirachtin ? 3-tigloylazadirachtol)] and synthetic origin
[Envidor 24 SC (spirodiclofen)]. Based on all of the analyzed variables, the ESAM
exhibited levels of activity superior to o... Mostrar Tudo |
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Palavras-Chave: |
Allelochemicals; Annonaceae; Bioactivity; Panonychus citri. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02373naa a2200205 a 4500
001 1121892
005 2014-10-07
008 2014 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, L. P.
245 $aComparative toxicity of an acetogenin-based extract and commercial pesticides against citrus red mite.$h[electronic resource]
260 $c2014
520 $aAcetogenins, a class of natural compounds produced by some Annonaceae species, are potent inhibitors of mitochondrial electron transport systems. Although the cellular respiration processes are an important biochemical site for the acaricidal action of compounds, few studies have been performed to assess the bioactivity of acetogenin-based biopesticides on spider mites, mainly against species that occur in orchards. Using residual contact bioassays, this study aimed to evaluate the bioactivity of an ethanolic extract from Annona mucosa seeds (ESAM) (Annonaceae) against the citrus red mite Panonychus citri (McGregor) (Acari: Tetranychidae), an important pest of the Brazilian citriculture. ESAM is a homemade biopesticide which was previously characterized by its high concentration of acetogenins. It caused both high mortality of P. citri females (LC50 = 7,295, 4,662, 3,463, and 2,608 mg l-1, after 48, 72, 96, and 120 h of exposure, respectively) and significant oviposition deterrence (EC50 = 3.194,80 mg l-1). However, there was no effect on P. citri female fertility (hatching rate). In addition, the ESAM efficacy (in terms of its LC90) was compared with commercial acaricides/insecticides (at its recommended rate) of both natural [Anosom 1 EC (annonin), Derisom 2 EC (karanjin), and Azamax 1.2 EC (azadirachtin ? 3-tigloylazadirachtol)] and synthetic origin [Envidor 24 SC (spirodiclofen)]. Based on all of the analyzed variables, the ESAM exhibited levels of activity superior to other botanical commercial acaricides and similar to spirodiclofen. Thus, our results indicate that ESAM may constitute a biorational acaricide for citrus red mite integrated pest management in Brazilian citrus orchards, particularly for local use.
653 $aAllelochemicals
653 $aAnnonaceae
653 $aBioactivity
653 $aPanonychus citri
700 1 $aZANARDI, O. Z.
700 1 $aVENDRAMIM, J. D.
700 1 $aYAMAMOTO, P. T.
773 $tExperimental & Applied Acarology, Switzerland, On line, 2014.
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Registro original: |
Epagri-Sede (Epagri-Sede) |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
17/08/2011 |
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Data da última atualização: |
17/08/2011 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Circulação/Nível: |
-- - -- |
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Autoria: |
KRAMMES, J. G.; ARGENTA, L. C.; BACARIN, M.; VIEIRA, M. J. |
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Afiliação: |
Epagri |
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Título: |
Aumento da conservação pós-colheita de caqui cultivar 'Fuyu' pelo uso de 1-MCP. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 18., 2004, Florianópolis, SC. Anais... Florianópolis, SC: Adeltech, 2004. p. 1-4. |
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Idioma: |
Português |
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Conteúdo: |
Fuyu é a principal cultivar de caqui em exploração no mundo, e no Brasil sua produção está em expansão principalmente nas regiões Sudeste e Sul. Caqui é um fruto climatérico, que apresenta baixa taxa de produção de etileno, altamente sensível à baixa concentração de etileno e moderadamente perecível, embora possa perder rápido a firmeza durante manejo e transporte se exposto a etileno exógeno. O baixo potencial de conservação pós-colheita é o fator limitante da comercialização de caqui. |
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Palavras-Chave: |
Armazenagem; Caqui; Etileno. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01014naa a2200157 a 4500
001 1079596
005 2011-08-17
008 2004 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aAumento da conservação pós-colheita de caqui cultivar 'Fuyu' pelo uso de 1-MCP.
260 $c2004
520 $aFuyu é a principal cultivar de caqui em exploração no mundo, e no Brasil sua produção está em expansão principalmente nas regiões Sudeste e Sul. Caqui é um fruto climatérico, que apresenta baixa taxa de produção de etileno, altamente sensível à baixa concentração de etileno e moderadamente perecível, embora possa perder rápido a firmeza durante manejo e transporte se exposto a etileno exógeno. O baixo potencial de conservação pós-colheita é o fator limitante da comercialização de caqui.
653 $aArmazenagem
653 $aCaqui
653 $aEtileno
773 $tIn: CONGRESSO BRASILEIRO DE FRUTICULTURA, 18., 2004, Florianópolis, SC. Anais... Florianópolis, SC: Adeltech, 2004. p. 1-4.
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