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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
28/10/2002 |
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Data da última atualização: |
07/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RIBEIRO, B. M.; GUEDES, R. N. C.; OLIVEIRA, E. E.; SANTOS, J. P. |
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Afiliação: |
Embrapa Milho e Sorgo. |
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Título: |
Insecticide resistance and synergism in Brazilian populations of Sitophilus zeamais (Coleoptera: curculionidae). |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Journal of Stored Products Research, Oxford, v. 39, p. 21-31, 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
Insecticide resistance to three organophosphate (chlorpyrifos-methyl,malathion and pirimiphos-methyl) and three pyrethroid (cypermethrin,deltamethrin and permethrin)insecticides was surveyed in nine .eld-collected populations of the maize weevil from six Brazilian States and contrasted with a standard susceptible population and a DDT and pyrethroid resistant population. Bioassay tests were carried out in glass vials (20 ml)impregnated with dried insecticide residue and the resistant populations were recognized by using discriminating concentrations established from LC95 s estimated for a standard susceptible population. Four .eld-collected populations had reduced susceptibility to cypermethrin (64 ?77% mortality)and to chlorpyrifos-methyl (76 ?77%mortality).All populations were susceptible to malathion and pirimiphos-methyl and only the DDT and pyrethroid resistant check showed resistance to allpyrethroids. Concentration ?mortality curves showed non-signi .cant levels of insecticide resistance in the. eld-collected populations and moderate (10 ?100-fold)to very high levels (>1000-fold)of resistance to pyrethroids in the DDT and pyrethroid resistant population. Results from insecticide bioassays with synergists (diethyl maleate,piperonyl butoxide,and triphenyl phosphate)suggested a major involvement of esterase as the cypermethrin resistance mechanism,while no clear result was obtained for chlorpyrifos-methyl. Synergism results provide support for target site resistance to pyrethroids in the DDT and pyrethroid resistant population used in this study.r 2002 Elsevier Science Ltd.All rights reserved. MenosInsecticide resistance to three organophosphate (chlorpyrifos-methyl,malathion and pirimiphos-methyl) and three pyrethroid (cypermethrin,deltamethrin and permethrin)insecticides was surveyed in nine .eld-collected populations of the maize weevil from six Brazilian States and contrasted with a standard susceptible population and a DDT and pyrethroid resistant population. Bioassay tests were carried out in glass vials (20 ml)impregnated with dried insecticide residue and the resistant populations were recognized by using discriminating concentrations established from LC95 s estimated for a standard susceptible population. Four .eld-collected populations had reduced susceptibility to cypermethrin (64 ?77% mortality)and to chlorpyrifos-methyl (76 ?77%mortality).All populations were susceptible to malathion and pirimiphos-methyl and only the DDT and pyrethroid resistant check showed resistance to allpyrethroids. Concentration ?mortality curves showed non-signi .cant levels of insecticide resistance in the. eld-collected populations and moderate (10 ?100-fold)to very high levels (>1000-fold)of resistance to pyrethroids in the DDT and pyrethroid resistant population. Results from insecticide bioassays with synergists (diethyl maleate,piperonyl butoxide,and triphenyl phosphate)suggested a major involvement of esterase as the cypermethrin resistance mechanism,while no clear result was obtained for chlorpyrifos-methyl. Synergism results provide support for target site resistance to py... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Organofosfato; Piretroides; Sinerginuo. |
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Thesagro: |
Inseticida; Resistência; Sitophilus Zeamais. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02346naa a2200241 a 4500
001 1486434
005 2018-06-07
008 2003 bl uuuu u00u1 u #d
100 1 $aRIBEIRO, B. M.
245 $aInsecticide resistance and synergism in Brazilian populations of Sitophilus zeamais (Coleoptera$bcurculionidae).$h[electronic resource]
260 $c2003
520 $aInsecticide resistance to three organophosphate (chlorpyrifos-methyl,malathion and pirimiphos-methyl) and three pyrethroid (cypermethrin,deltamethrin and permethrin)insecticides was surveyed in nine .eld-collected populations of the maize weevil from six Brazilian States and contrasted with a standard susceptible population and a DDT and pyrethroid resistant population. Bioassay tests were carried out in glass vials (20 ml)impregnated with dried insecticide residue and the resistant populations were recognized by using discriminating concentrations established from LC95 s estimated for a standard susceptible population. Four .eld-collected populations had reduced susceptibility to cypermethrin (64 ?77% mortality)and to chlorpyrifos-methyl (76 ?77%mortality).All populations were susceptible to malathion and pirimiphos-methyl and only the DDT and pyrethroid resistant check showed resistance to allpyrethroids. Concentration ?mortality curves showed non-signi .cant levels of insecticide resistance in the. eld-collected populations and moderate (10 ?100-fold)to very high levels (>1000-fold)of resistance to pyrethroids in the DDT and pyrethroid resistant population. Results from insecticide bioassays with synergists (diethyl maleate,piperonyl butoxide,and triphenyl phosphate)suggested a major involvement of esterase as the cypermethrin resistance mechanism,while no clear result was obtained for chlorpyrifos-methyl. Synergism results provide support for target site resistance to pyrethroids in the DDT and pyrethroid resistant population used in this study.r 2002 Elsevier Science Ltd.All rights reserved.
650 $aInseticida
650 $aResistência
650 $aSitophilus Zeamais
653 $aBrasil
653 $aOrganofosfato
653 $aPiretroides
653 $aSinerginuo
700 1 $aGUEDES, R. N. C.
700 1 $aOLIVEIRA, E. E.
700 1 $aSANTOS, J. P.
773 $tJournal of Stored Products Research, Oxford$gv. 39, p. 21-31, 2003.
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Embrapa Milho e Sorgo (CNPMS) |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
03/09/1997 |
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Data da última atualização: |
19/07/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SILVA, J. B. da; OLIVEIRA, A. de C.; FONSECA, L. B.; OLIVEIRA, A. C. de. |
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Afiliação: |
EMBRAPA-CNPMS; ANTONIO CARLOS DE OLIVEIRA, CNPMS. |
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Título: |
Avaliação da mistura formulada de alachlor atrazine no controle de plantas daninhas na cultura do milho (Zea mays L.). |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE HERBICIDAS E ERVAS DANINHAS, 14.; CONGRESSO DE LA ASOCIATION LATINO AMERICANO DE MALEZAS, 6., 1982, Campinas. Resumos. Campinas: [s.n.], 1982. p. 118-119. |
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Idioma: |
Português |
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Palavras-Chave: |
Control; Controle; Maize; Planta daninha; Weed. |
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Thesagro: |
Milho; Zea Mays. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/73183/1/Avaliacao-mistura.pdf
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Marc: |
LEADER 00790nam a2200217 a 4500
001 1476176
005 2018-07-19
008 1982 bl uuuu u00u1 u #d
100 1 $aSILVA, J. B. da
245 $aAvaliação da mistura formulada de alachlor atrazine no controle de plantas daninhas na cultura do milho (Zea mays L.).$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE HERBICIDAS E ERVAS DANINHAS, 14.; CONGRESSO DE LA ASOCIATION LATINO AMERICANO DE MALEZAS, 6., 1982, Campinas. Resumos. Campinas: [s.n.], 1982. p. 118-119.$c1982
650 $aMilho
650 $aZea Mays
653 $aControl
653 $aControle
653 $aMaize
653 $aPlanta daninha
653 $aWeed
700 1 $aOLIVEIRA, A. de C.
700 1 $aFONSECA, L. B.
700 1 $aOLIVEIRA, A. C. de
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