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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
11/09/2023 |
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Data da última atualização: |
10/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, C. M. de; SABATO, E. de O.; BARROS, B. de A. |
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Afiliação: |
CHARLES MARTINS DE OLIVEIRA, CPAC; ELIZABETH DE OLIVEIRA SABATO, PESQUISADORA APOSENTADA-CNPMS; BEATRIZ DE ALMEIDA BARROS, CNPMS. |
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Título: |
Natural infectivity of Dalbulus maidis populations and incidence of corn stunt and virus diseases in maize over time. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Tropical Plant Pathology, v. 48, p. 575-580, 2023. |
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DOI: |
https://doi.org/10.1007/s40858-023-00599-0 |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to evaluate the natural infectivity of Dalbulus maidis with spiroplasma (corn stunt spiroplasma'CSS'Spiroplasma kunkelii), phytoplasma (maize bushy stunt phytoplasma'MBSP), and virus (maize rayado fino virus'MRFV) through transmission tests using two densities of leafhoppers (one and five adult D. maidis) collected fortnightly from maize fields during two agricultural years. During 35 months D. maidis adults were collected in maize at intervals of 15 days with entomological net (Sete Lagoas/MG, Brazil). The leafhoppers were confined in number of one or five individuals by maize plant (V2 stage) for an inoculation access period (IAP) of five days. At flowering stage, plant disease symptoms were evaluated. The total percentage of plants showing symptoms of infection by at least one of the pathogens (spiroplasma, phytoplasma or MRFV) was significantly higher for plants that were exposed to five leafhoppers (24.2%) compared to those exposed to one leafhopper (12.3%). The percent of diseased plants was similar in Autumn (20.0%), Winter (18.8%), Springer (16.1%) and Summer (18.3%). However, spiroplasma infection was predominant in Summer. Our results demonstrated that a five-fold increase in the number of D. maidis on maize plants led to a two-fold increase in the number of symptomatic plants. Under natural conditions, leafhoppers have the ability to visit multiple plants during the post-emergence phase, thereby transmitting pathogens to multiple plants that become source plants for corn stunt and virus diseases. Therefore, population reduction of D. maidis can be a critical strategy for managing these diseases in maize crops. MenosThe aim of this study was to evaluate the natural infectivity of Dalbulus maidis with spiroplasma (corn stunt spiroplasma'CSS'Spiroplasma kunkelii), phytoplasma (maize bushy stunt phytoplasma'MBSP), and virus (maize rayado fino virus'MRFV) through transmission tests using two densities of leafhoppers (one and five adult D. maidis) collected fortnightly from maize fields during two agricultural years. During 35 months D. maidis adults were collected in maize at intervals of 15 days with entomological net (Sete Lagoas/MG, Brazil). The leafhoppers were confined in number of one or five individuals by maize plant (V2 stage) for an inoculation access period (IAP) of five days. At flowering stage, plant disease symptoms were evaluated. The total percentage of plants showing symptoms of infection by at least one of the pathogens (spiroplasma, phytoplasma or MRFV) was significantly higher for plants that were exposed to five leafhoppers (24.2%) compared to those exposed to one leafhopper (12.3%). The percent of diseased plants was similar in Autumn (20.0%), Winter (18.8%), Springer (16.1%) and Summer (18.3%). However, spiroplasma infection was predominant in Summer. Our results demonstrated that a five-fold increase in the number of D. maidis on maize plants led to a two-fold increase in the number of symptomatic plants. Under natural conditions, leafhoppers have the ability to visit multiple plants during the post-emergence phase, thereby transmitting pathogens to multiple plants t... Mostrar Tudo |
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Palavras-Chave: |
Densidade populacional; Infecciosidade natural; Manejo integrado; Natural infectivity. |
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Thesagro: |
Inseto; Vetor. |
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Thesaurus Nal: |
Insect vectors; Integrated pest management; Population density. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02524naa a2200265 a 4500
001 2156553
005 2023-11-10
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s40858-023-00599-0$2DOI
100 1 $aOLIVEIRA, C. M. de
245 $aNatural infectivity of Dalbulus maidis populations and incidence of corn stunt and virus diseases in maize over time.$h[electronic resource]
260 $c2023
520 $aThe aim of this study was to evaluate the natural infectivity of Dalbulus maidis with spiroplasma (corn stunt spiroplasma'CSS'Spiroplasma kunkelii), phytoplasma (maize bushy stunt phytoplasma'MBSP), and virus (maize rayado fino virus'MRFV) through transmission tests using two densities of leafhoppers (one and five adult D. maidis) collected fortnightly from maize fields during two agricultural years. During 35 months D. maidis adults were collected in maize at intervals of 15 days with entomological net (Sete Lagoas/MG, Brazil). The leafhoppers were confined in number of one or five individuals by maize plant (V2 stage) for an inoculation access period (IAP) of five days. At flowering stage, plant disease symptoms were evaluated. The total percentage of plants showing symptoms of infection by at least one of the pathogens (spiroplasma, phytoplasma or MRFV) was significantly higher for plants that were exposed to five leafhoppers (24.2%) compared to those exposed to one leafhopper (12.3%). The percent of diseased plants was similar in Autumn (20.0%), Winter (18.8%), Springer (16.1%) and Summer (18.3%). However, spiroplasma infection was predominant in Summer. Our results demonstrated that a five-fold increase in the number of D. maidis on maize plants led to a two-fold increase in the number of symptomatic plants. Under natural conditions, leafhoppers have the ability to visit multiple plants during the post-emergence phase, thereby transmitting pathogens to multiple plants that become source plants for corn stunt and virus diseases. Therefore, population reduction of D. maidis can be a critical strategy for managing these diseases in maize crops.
650 $aInsect vectors
650 $aIntegrated pest management
650 $aPopulation density
650 $aInseto
650 $aVetor
653 $aDensidade populacional
653 $aInfecciosidade natural
653 $aManejo integrado
653 $aNatural infectivity
700 1 $aSABATO, E. de O.
700 1 $aBARROS, B. de A.
773 $tTropical Plant Pathology$gv. 48, p. 575-580, 2023.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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| Registros recuperados : 208 | |
| 121. |  | OLIVEIRA, Y. M. M. de; PRADO, R. B.; AMANCIO, C. O. da G.; UZEDA, M. C.; GAROFOLO, A. C. S. Ecosystem conservation and poverty reduction. In: VILELA, G. F.; BENTES, M. P. de M.; OLIVEIRA, Y. M. M. de; MARQUES, D. K. S.; SILVA, J. C. B. (Ed.). Life on land: contributions of Embrapa. Brasília, DF: Embrapa, 2019. E-book. cap. 9, p. 105-113. (Sustainable development goal, 15).| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Florestas; Embrapa Solos. |
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| 122. | | OLIVEIRA, Y. M. M. de; PRADO, R. B.; AMANCIO, C. O. da G.; UZEDA, M. C.; GAROFOLO, A. C. S. Ecosystem conservation and poverty reduction. In: VILELA, G. F.; BENTES, M. P. de M.; OLIVEIRA, Y. M. M. de; MARQUES, D. K. S.; SILVA, J. C. B. (Ed.). Life on land: contributions of Embrapa. Brasília, DF: Embrapa, 2019. p. 105-113| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 124. | | ROSOT, M. A. D.; OLIVEIRA, Y. M. M. de; RIVERA, H.; CRUZ, P.; MATTOS, P. P. de. Dasarrollo de un modelo de plan de manejo para áreas protegidas en bosques con araucaria en el sur de Brasil. In: CONGRESO LATINOAMERICANO IUFRO, 2., 2006, La Serena. Bosques: la creciente importancia de sus funciones ambientales, sociales y económicas. [Santiago]: INFOR, 2006. p. 111 Resumo. IUFROLAT 2006.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 128. | | OLIVEIRA, Y. M. M. de; ROSOT, M. A. D.; LUZ, N. B. da; MATTOS, P. P. de. National system of permanent plots: proposal for a methodological model. In: IUFRO World Congress, 22., 2005, Brisbane. Forests in the balance: linking tradition and technology: program & abstracts. [Vienna]: IUFRO, 2005. 1 CD-ROM. Também publicado no The International Forestry Review, Oxford, v. 7, n. 5, p.196, Aug. 2005. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 130. | | CARDOSO, D. J.; ROSOT, M. A. D.; GARRASTAZU, M. C.; LACERDA, A. E. B. de; OLIVEIRA, Y. M. M. de. Management of natural regeneration of Araucaria angustifolia in small farms in Southern Brazil: an alternative for the conservation of the species. Pesquisa Florestal Brasileira, Colombo, v. 39, (nesp), e201902043, 2019. p. 47. Edição especial dos resumos do IUFRO World Congress, 25., 2019, Curitiba.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 133. | | DZEPRAILIDIS, C.; CARPANEZZI, A. A.; ROSOT, M. A. D.; HIGA, R. C. V.; OLIVEIRA, Y. M. M. de. Zoneamento de riscos climáticos para as plantações de Pinus taeda, Eucalyptus grandis e Mimosa scabrella Bentham. In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 3., 2004, Colombo. Anais. Colombo: Embrapa Florestas, 2004. 1 CD-ROM. (Embrapa Florestas. Documentos, 102). Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 135. | | OLIVEIRA, Y. M. M. de; ROSOT, M. A. D.; CIESLA, W. M.; JOHNSON, E.; RHEA, R.; PENTEADO JUNIOR, J.; LUZ, N. B. da. Aerial sketchmapping for monitoring forest conditions in Southern Brazil. In: MONITORING SCIENCE AND TECHNOLOGY SYMPOSIUM, Denver, 2004. Proceedings... Fort Collins: USDA, Forest Service, Rocky Mountain Research Station, 2005. 1 CD-ROM. (Proceedings RMRS-P37CD).| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Florestas. |
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| 136. | | MATTOS, P. P. de; OLIVEIRA, M. F.; AGUSTINI, A. F.; BRAZ, E. M.; RIVERA, H.; OLIVEIRA, Y. M. M. de; ROSOT, M. A. D.; GARRASTAZU, M. C. Aceleração do crescimento em diâmetro de espécies da Floresta Ombrófila Mista nos últimos 90 anos. Pesquisa Florestal Brasileira, Colombo, v. 30, n. 64, p. 319-326, nov./dez. 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
| Biblioteca(s): Embrapa Florestas. |
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| 137. | | BERNDT, E. J.; MATTOS, P. P. de; GARRASTAZU, M. C.; LACERDA, A. E. B. de; ROSOT, M. A. D.; OLIVEIRA, Y. M. M. de; ROSOT, N. C. Aplicação de dendrocronologia em árvores centenárias da Reserva Florestal Embrapa/Epagri de Caçador, SC. In: SIMPÓSIO BRASIL-ALEMANHA, 4., 2009, Curitiba. Desenvolvimento sustentável: resumos. Curitiba: Centro de Cooperação Internacional Brasil-Alemanha: UFPR, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 138. | | COSTA, C. R. da; LUZ, N. B. da; ARAKI, H.; OLIVEIRA, Y. M. M. de; ROSOT, M. A. D.; GARRASTAZU, M. C.; KRUEGER, C. P. Análise da exatidão cartográfica das imagens Rapideye adotadas no Inventário Florestal Nacional do Brasil (IFN-BR). In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 17., 2015, João Pessoa. Anais... São José dos Campos: INPE, 2015. p. 3289-3296. Disponível online.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 139. | | ALBERGONI, L.; GARRASTAZU, M. C.; ROSOT, N. C.; ROSOT, M. A. D.; OLIVEIRA, Y. M. M. de; LACERDA, A. E. B. de. Análise da ocupação do entorno da Reserva Florestal Embrapa/Epagri. In: SIMPÓSIO BRASIL-ALEMANHA, 4., 2009, Curitiba. Desenvolvimento sustentável: resumos. Curitiba: Centro de Cooperação Internacional Brasil-Alemanha: UFPR, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 208 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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