Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae).
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/1142675 https://doi.org/10.3390/agronomy12040947 |
Resumo: | The spittlebug Mahanarva spectabilis (Distant, 1909) is considered the main and most limiting pest of elephant grass (Pennisetum purpureum Schum.), and has caused economic losses to Brazilian farmers. In this study, we evaluated the insecticidal effects of aqueous extracts of garlic, rue, cinnamon, lemongrass, clove, star anise, eucalyptus, tobacco, and thyme on M. spectabilis nymphs. The results indicated that the tobacco extract was the most effective among all extracts, as it reached a mortality of 76%. The next most effective was star anise extract and cinnamon extract was the least effective. In the second stage of tests, we evaluated the insecticidal potential of five concentrations of tobacco extract. The values of LD50 and LD90 calculated for aqueous tobacco extract were, respectively, 11.5% and 33.3% 24 h after application, and 9.2% and 29.5% 48 h after application. We also evaluated different methods of extraction, through comparative tests, and the methods of infusion and decoction proved to be equivalent to those of the method of extraction by ultrasound. We conclude that among the nine aqueous plant extracts tested, tobacco extract was the only one recommended against M. spectabilis, as it showed insecticidal activity, with better results at a concentration of 25%, and with extraction by infusion and decoction. |
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Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae).AgroecologiaInseticida botanicoPlant active ingredientsExtraction methodsCigarrinhaPraga de PlantaInseticidaMortalidadeExtraçãoMortalityAgroecologyBotanical insecticidesPest controlThe spittlebug Mahanarva spectabilis (Distant, 1909) is considered the main and most limiting pest of elephant grass (Pennisetum purpureum Schum.), and has caused economic losses to Brazilian farmers. In this study, we evaluated the insecticidal effects of aqueous extracts of garlic, rue, cinnamon, lemongrass, clove, star anise, eucalyptus, tobacco, and thyme on M. spectabilis nymphs. The results indicated that the tobacco extract was the most effective among all extracts, as it reached a mortality of 76%. The next most effective was star anise extract and cinnamon extract was the least effective. In the second stage of tests, we evaluated the insecticidal potential of five concentrations of tobacco extract. The values of LD50 and LD90 calculated for aqueous tobacco extract were, respectively, 11.5% and 33.3% 24 h after application, and 9.2% and 29.5% 48 h after application. We also evaluated different methods of extraction, through comparative tests, and the methods of infusion and decoction proved to be equivalent to those of the method of extraction by ultrasound. We conclude that among the nine aqueous plant extracts tested, tobacco extract was the only one recommended against M. spectabilis, as it showed insecticidal activity, with better results at a concentration of 25%, and with extraction by infusion and decoction.VINÍCIUS FERRAZ NASCIMENTO, Universidade Federal de Juiz de Fora; ALEXANDER MACHADO AUAD, CNPGL; TIAGO TEIXEIRA DE RESENDE, CNPGL; AMANDA JDENAINA MENDOZA VISCONDE, Centro Universitário UniAcademia; MARCELLE LEANDRO DIAS, Universidade Federal de Juiz de Fora.NASCIMENTO, V. F.AUAD, A. M.RESENDE, T. T. deVISCONDE, A. J. M.DIAS, M. L.2022-05-05T16:12:27Z2022-05-05T16:12:27Z2022-05-052022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleAgronomy, v. 12, n. 4, 947, 2022.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1142675https://doi.org/10.3390/agronomy12040947enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2022-05-05T16:12:37Zoai:www.alice.cnptia.embrapa.br:doc/1142675Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542022-05-05T16:12:37falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542022-05-05T16:12:37Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). |
title |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). |
spellingShingle |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). NASCIMENTO, V. F. Agroecologia Inseticida botanico Plant active ingredients Extraction methods Cigarrinha Praga de Planta Inseticida Mortalidade Extração Mortality Agroecology Botanical insecticides Pest control |
title_short |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). |
title_full |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). |
title_fullStr |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). |
title_full_unstemmed |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). |
title_sort |
Insecticidal activity of aqueous extracts of plant origin on Mahanarva spectabilis (Distant, 1909) (Hemiptera: Cercopidae). |
author |
NASCIMENTO, V. F. |
author_facet |
NASCIMENTO, V. F. AUAD, A. M. RESENDE, T. T. de VISCONDE, A. J. M. DIAS, M. L. |
author_role |
author |
author2 |
AUAD, A. M. RESENDE, T. T. de VISCONDE, A. J. M. DIAS, M. L. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
VINÍCIUS FERRAZ NASCIMENTO, Universidade Federal de Juiz de Fora; ALEXANDER MACHADO AUAD, CNPGL; TIAGO TEIXEIRA DE RESENDE, CNPGL; AMANDA JDENAINA MENDOZA VISCONDE, Centro Universitário UniAcademia; MARCELLE LEANDRO DIAS, Universidade Federal de Juiz de Fora. |
dc.contributor.author.fl_str_mv |
NASCIMENTO, V. F. AUAD, A. M. RESENDE, T. T. de VISCONDE, A. J. M. DIAS, M. L. |
dc.subject.por.fl_str_mv |
Agroecologia Inseticida botanico Plant active ingredients Extraction methods Cigarrinha Praga de Planta Inseticida Mortalidade Extração Mortality Agroecology Botanical insecticides Pest control |
topic |
Agroecologia Inseticida botanico Plant active ingredients Extraction methods Cigarrinha Praga de Planta Inseticida Mortalidade Extração Mortality Agroecology Botanical insecticides Pest control |
description |
The spittlebug Mahanarva spectabilis (Distant, 1909) is considered the main and most limiting pest of elephant grass (Pennisetum purpureum Schum.), and has caused economic losses to Brazilian farmers. In this study, we evaluated the insecticidal effects of aqueous extracts of garlic, rue, cinnamon, lemongrass, clove, star anise, eucalyptus, tobacco, and thyme on M. spectabilis nymphs. The results indicated that the tobacco extract was the most effective among all extracts, as it reached a mortality of 76%. The next most effective was star anise extract and cinnamon extract was the least effective. In the second stage of tests, we evaluated the insecticidal potential of five concentrations of tobacco extract. The values of LD50 and LD90 calculated for aqueous tobacco extract were, respectively, 11.5% and 33.3% 24 h after application, and 9.2% and 29.5% 48 h after application. We also evaluated different methods of extraction, through comparative tests, and the methods of infusion and decoction proved to be equivalent to those of the method of extraction by ultrasound. We conclude that among the nine aqueous plant extracts tested, tobacco extract was the only one recommended against M. spectabilis, as it showed insecticidal activity, with better results at a concentration of 25%, and with extraction by infusion and decoction. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-05-05T16:12:27Z 2022-05-05T16:12:27Z 2022-05-05 2022 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Agronomy, v. 12, n. 4, 947, 2022. http://www.alice.cnptia.embrapa.br/alice/handle/doc/1142675 https://doi.org/10.3390/agronomy12040947 |
identifier_str_mv |
Agronomy, v. 12, n. 4, 947, 2022. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1142675 https://doi.org/10.3390/agronomy12040947 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
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Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
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EMBRAPA |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
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Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503522029404160 |