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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
22/10/2018 |
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Data da última atualização: |
30/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, T. T. M. dos; QUINTELA, E. D.; MASCARIN, G. M.; SANTANA, M. V. |
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Afiliação: |
TASSIA TUANE MOREIRA DOS SANTOS, UFO; ELIANE DIAS QUINTELA, CNPAF; GABRIEL MOURA MASCARIN, CNPMA; MARCUS VINICIUS SANTANA, UFG. |
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Título: |
Enhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Journal of Applied Entomology, v. 142, n. 6, p. 598-609, 2018. |
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ISBN: |
1439-0418 |
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DOI: |
https://doi.org/10.1111/jen.12504 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel-Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second-instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide-fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 and 12.5 ppm. Additive interactions were also observed from mixtures of fungus at 5 × 106 and buprofezin at 3.12 and 6.25 ppm. Only combinations of I. javanica with spiromesifen reduced to some extent the mycosis on dead nymphs. The joint action of I. javanica with sublethal doses of these insecticides may be a promising tool to assist in the integrated management system for B. tabaci. MenosThe aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel-Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second-instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide-fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 an... Mostrar Tudo |
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Thesagro: |
Bemisia Tabaci; Controle Biológico; Fungo Para Controle Biológico; Inseticida. |
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Thesaurus Nal: |
Biological control; Buprofezin; Cordycipitaceae; Entomopathogenic fungi; Integrated pest management; Plant pests; Spiromesifen; Synergism. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02899naa a2200325 a 4500
001 2097823
005 2018-10-30
008 2018 bl --- 0-- u #d
022 $a1439-0418
024 7 $ahttps://doi.org/10.1111/jen.12504$2DOI
100 1 $aSANTOS, T. T. M. dos
245 $aEnhanced mortality of Bemisia tabaci nymphs by Isaria javanica combined with sublethal doses of chemical insecticides.$h[electronic resource]
260 $c2018
520 $aThe aim of this current study was to evaluate the mortality of Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) nymphs by the combination between the entomopathogenic fungus Isaria javanica (Friedrichs & Bally) Samson & Hywel-Jones and synthetic chemical insecticides. The bioefficacy of I. javanica and the insect growth regulators named spiromesifen and buprofezin was tested alone and in combination against B. tabaci nymphs under screenhouse conditions. The in vitro compatibility between these two control agents was previously assessed under laboratory conditions. The sublethal concentration (LC25) of these insecticides towards second-instar nymphs was determined and then mixed with the fungal treatments to investigate the type of interaction. All I. javanica isolates at 5 × 107 conidia/ml inflicted nymphal mortality by up to 62.4%. The insecticides did not influence the germination and mycelial growth of the selected I. javanica isolate CG1282. In general, the insecticide-fungus combinations increased nymphal mortalities in comparison with their single counterparts. Combinations with the fungus and buprofezin or spiromesifen augmented nymphal mortality by 10% and 24%, respectively, in comparison with the fungus alone. Additive interaction was found with the combination of the I. javanica CG1282 at 1 × 106 conidia/ml and spiromesifen at 1.56 ppm, and additive and synergistic interactions were achieved with the fungus at 5 × 106 conidia/ml and spiromesifen at 3.12, 6.25 and 12.5 ppm. Additive interactions were also observed from mixtures of fungus at 5 × 106 and buprofezin at 3.12 and 6.25 ppm. Only combinations of I. javanica with spiromesifen reduced to some extent the mycosis on dead nymphs. The joint action of I. javanica with sublethal doses of these insecticides may be a promising tool to assist in the integrated management system for B. tabaci.
650 $aBiological control
650 $aBuprofezin
650 $aCordycipitaceae
650 $aEntomopathogenic fungi
650 $aIntegrated pest management
650 $aPlant pests
650 $aSpiromesifen
650 $aSynergism
650 $aBemisia Tabaci
650 $aControle Biológico
650 $aFungo Para Controle Biológico
650 $aInseticida
700 1 $aQUINTELA, E. D.
700 1 $aMASCARIN, G. M.
700 1 $aSANTANA, M. V.
773 $tJournal of Applied Entomology$gv. 142, n. 6, p. 598-609, 2018.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
09/05/2005 |
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Data da última atualização: |
18/01/2010 |
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Autoria: |
OLIVEIRA, A. L. M. de; SIMÕES-ARAÚJO, J. L.; BALDANI, J. I. |
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Título: |
Extração conjunta de DNA e RNA bacteriano de alta pureza. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
Seropédica: Embrapa Agrobiologia, 2005. |
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Páginas: |
4 p. |
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Série: |
(Embrapa Agrobiologia. Comunicado Técnico, 75). |
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ISSN: |
1517-8862 |
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Idioma: |
Português |
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Palavras-Chave: |
Ácido ribonucléico; Deoxyribonucleic acid; Ribonucleic acid. |
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Thesagro: |
Ácido Nucléico; Bactéria; Microrganismo. |
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Thesaurus NAL: |
microorganisms; nucleic acids. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPAB-2010/32378/1/cot075.pdf
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Marc: |
LEADER 00732nam a2200253 a 4500
001 1628137
005 2010-01-18
008 2005 bl uuuu u0uu1 u #d
022 $a1517-8862
100 1 $aOLIVEIRA, A. L. M. de
245 $aExtração conjunta de DNA e RNA bacteriano de alta pureza.
260 $aSeropédica: Embrapa Agrobiologia$c2005
300 $a4 p.
490 $a(Embrapa Agrobiologia. Comunicado Técnico, 75).
650 $amicroorganisms
650 $anucleic acids
650 $aÁcido Nucléico
650 $aBactéria
650 $aMicrorganismo
653 $aÁcido ribonucléico
653 $aDeoxyribonucleic acid
653 $aRibonucleic acid
700 1 $aSIMÕES-ARAÚJO, J. L.
700 1 $aBALDANI, J. I.
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Embrapa Agrobiologia (CNPAB) |
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