Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis

Detalhes bibliográficos
Autor(a) principal: Mourão, Sheila Abreu
Data de Publicação: 2004
Outros Autores: Zanuncio, José Cola, Filho, Angelo Pallini, Guedes, Raul Narciso Carvalho, Camargos, Adonai Bruneli de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/6845
Resumo: The objective of this work was to study the toxicity of extracts of oil cake, seeds and leaves of Azadirachta indica A. Juss (neem) to the coffee red mite Oligonychus ilicis (McGregor) (Acari: Tetranychidae). Concentration-mortality and instantaneous rate of populational growth were determined for adult females of the red mite on disks of coffee with 3.5 cm diameter, floating on water and impregnated with dry residues of the neem extracts. Concentrations of these extracts which caused 50% mortality of the individuals of O. ilicis were 0.02, 15.9 and 121.4 mg/mL; while 99% mortality of this mite was reached with 10.9, 520.9 and 277.4 mg/mL for oil cake, seeds and leaves extracts, respectively. The instantaneous rate of populational growth of O. ilicis dropped as the extract doses increased up to 0.075, 15 and 144 mg/mL for oil cake, seeds and leaves extracts, respectively
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spelling Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicisToxicidade de extratos de nim (Azadirachta indica) ao ácaro-vermelho-do-cafeeiro Oligonychus ilicisnatural pesticide; coffee pest; plant insecticidepesticida natural; praga do café; inseticida botânicoThe objective of this work was to study the toxicity of extracts of oil cake, seeds and leaves of Azadirachta indica A. Juss (neem) to the coffee red mite Oligonychus ilicis (McGregor) (Acari: Tetranychidae). Concentration-mortality and instantaneous rate of populational growth were determined for adult females of the red mite on disks of coffee with 3.5 cm diameter, floating on water and impregnated with dry residues of the neem extracts. Concentrations of these extracts which caused 50% mortality of the individuals of O. ilicis were 0.02, 15.9 and 121.4 mg/mL; while 99% mortality of this mite was reached with 10.9, 520.9 and 277.4 mg/mL for oil cake, seeds and leaves extracts, respectively. The instantaneous rate of populational growth of O. ilicis dropped as the extract doses increased up to 0.075, 15 and 144 mg/mL for oil cake, seeds and leaves extracts, respectivelyO objetivo deste trabalho foi estudar a toxicidade aguda e crônica de extratos de óleo de torta, de sementes e de folhas de Azadirachta indica A. Juss (nim) a fêmeas do ácaro-vermelho-do-cafeeiro Oligonychus ilicis (McGregor) (Acari: Tetranychidae). A mortalidade e a taxa instantânea de crescimento populacional de fêmeas adultas desse ácaro foram avaliadas em discos de folhas de cafeeiro com 3,5 cm de diâmetro, impregnados com resíduo seco dos extratos de nim e flutuando em água. As concentrações dos extratos de óleo de torta, sementes e folhas de nim que mataram 50% e 99% dos indivíduos de O. ilicis, após 72 horas de exposição, foram de 0,02, 15,9 e 121,4 mg/mL e de 10,9, 520,9 e 277,4 mg/mL, respectivamente. A taxa instantânea de crescimento populacional de O. ilicis diminuiu, linearmente, com o aumento da concentração dos extratos de óleo de torta, sementes e folhas de nim até 0,075, 15 e 144 mg/mL, respectivamente, a partir das quais as populações desse ácaro foram extintas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMourão, Sheila AbreuZanuncio, José ColaFilho, Angelo PalliniGuedes, Raul Narciso CarvalhoCamargos, Adonai Bruneli de2004-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/6845Pesquisa Agropecuaria Brasileira; v.39, n.8, ago. 2004; 827-830Pesquisa Agropecuária Brasileira; v.39, n.8, ago. 2004; 827-8301678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/6845/3901info:eu-repo/semantics/openAccess2014-08-25T18:35:55Zoai:ojs.seer.sct.embrapa.br:article/6845Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-08-25T18:35:55Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
Toxicidade de extratos de nim (Azadirachta indica) ao ácaro-vermelho-do-cafeeiro Oligonychus ilicis
title Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
spellingShingle Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
Mourão, Sheila Abreu
natural pesticide; coffee pest; plant insecticide
pesticida natural; praga do café; inseticida botânico
title_short Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
title_full Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
title_fullStr Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
title_full_unstemmed Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
title_sort Toxicity of neem extracts (Azadirachta indica) to the coffee red mite Oligonychus ilicis
author Mourão, Sheila Abreu
author_facet Mourão, Sheila Abreu
Zanuncio, José Cola
Filho, Angelo Pallini
Guedes, Raul Narciso Carvalho
Camargos, Adonai Bruneli de
author_role author
author2 Zanuncio, José Cola
Filho, Angelo Pallini
Guedes, Raul Narciso Carvalho
Camargos, Adonai Bruneli de
author2_role author
author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Mourão, Sheila Abreu
Zanuncio, José Cola
Filho, Angelo Pallini
Guedes, Raul Narciso Carvalho
Camargos, Adonai Bruneli de
dc.subject.por.fl_str_mv natural pesticide; coffee pest; plant insecticide
pesticida natural; praga do café; inseticida botânico
topic natural pesticide; coffee pest; plant insecticide
pesticida natural; praga do café; inseticida botânico
description The objective of this work was to study the toxicity of extracts of oil cake, seeds and leaves of Azadirachta indica A. Juss (neem) to the coffee red mite Oligonychus ilicis (McGregor) (Acari: Tetranychidae). Concentration-mortality and instantaneous rate of populational growth were determined for adult females of the red mite on disks of coffee with 3.5 cm diameter, floating on water and impregnated with dry residues of the neem extracts. Concentrations of these extracts which caused 50% mortality of the individuals of O. ilicis were 0.02, 15.9 and 121.4 mg/mL; while 99% mortality of this mite was reached with 10.9, 520.9 and 277.4 mg/mL for oil cake, seeds and leaves extracts, respectively. The instantaneous rate of populational growth of O. ilicis dropped as the extract doses increased up to 0.075, 15 and 144 mg/mL for oil cake, seeds and leaves extracts, respectively
publishDate 2004
dc.date.none.fl_str_mv 2004-08-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6845
url https://seer.sct.embrapa.br/index.php/pab/article/view/6845
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/6845/3901
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.39, n.8, ago. 2004; 827-830
Pesquisa Agropecuária Brasileira; v.39, n.8, ago. 2004; 827-830
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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