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Registro Completo |
Biblioteca(s): |
Embrapa Arroz e Feijão; Embrapa Clima Temperado. |
Data corrente: |
13/02/2023 |
Data da última atualização: |
14/02/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
PAZINI, J. DE B.; GRÜTZMACHER, A. D.; SEIDEL, E. J.; VIEIRA, A. M. C.; PADILHA, A. C.; BRITO, G. G. de; BERNARDI, D.; BARRIGOSSI, J. A. F.; MARTINS, J. F. da S. |
Afiliação: |
JULIANO DE B. PAZINI, UNIVERSIDADE FEDERAL DE PELOTAS; ANDERSON D. GRÜTZMACHER, UNIVERSIDADE FEDERAL DE PELOTAS; ENIO J. SEIDEL, UNIVERSIDADE FEDERAL DE SANTA MARIA; AFRÂNIO M. C. VIEIRA, UNIVERSIDADE FEDERAL DE SÃO CARLOS; ALINE C. PADILHA, UNIVERSIDADE DE SÃO PAULO; GIOVANI GREIGH DE BRITO, CPACT; DANIEL BERNARDI, UNIVERSIDADE FEDERAL DE PELOTAS; JOSE ALEXANDRE F BARRIGOSSI, CNPAF; JOSE FRANCISCO DA SILVA MARTINS, CPACT. |
Título: |
Differential response to the South American rice water weevil (Coleoptera: Curculionidae) damage of rice cultivars with contrasting levels of resistance: implications for field management. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Pest Management Science, v. 79, n. 3, p. 947-958, Mar. 2023. |
ISSN: |
1526-4998 |
DOI: |
https://doi.org/10.1002/ps.7262 |
Idioma: |
Inglês |
Conteúdo: |
BACKGROUND Oryzophagus oryzae (Costa Lima) (Coleoptera: Curculionidae) is a major pest of flooded rice paddies throughout South America, and species with very similar life histories are present in many rice-producing regions of the world (collectively rice water weevils, RWWs). The damage caused by RWW larvae on rice cultivars with contrasting levels of resistance (?BRS Pampa CL'= 'Pamp': susceptible, 'BRS Atalanta' = 'Atal': resistant-antibiosis) was evaluated in two consecutive years in the field under seven infestation levels: 0, 2, 4, 6, 8, 10 and 20 adult couples per cage with plants. RESULTS Higher densities of adults increased the number of leaf-feeding scars and larvae on roots, respectively, at the rate <-8804;2.14 and 2.75 in Pamp and 2.23 and 2.48 in Atal, with the total number of larvae generated being lower in Atal. Grain yield was negatively impacted with increasing larval density on the roots, mainly by decreasing root volume and the number of grains per panicle. Root injury intensity and yield loss showed a nonlinear relationship. It was found that significant yield losses occurred with 8.37 larvae per plant in Pamp and 9.80 larvae per plant in Atal. CONCLUSION The results provided the first evidence of a tolerance limit for RWW larval damage that, even though similar between cultivars of contrasting resistance, corresponds to twice the current conventional level for larval control in Brazil. We also discuss here the potential of applying tolerance limits to manage the RWW adult population in rice fields. MenosBACKGROUND Oryzophagus oryzae (Costa Lima) (Coleoptera: Curculionidae) is a major pest of flooded rice paddies throughout South America, and species with very similar life histories are present in many rice-producing regions of the world (collectively rice water weevils, RWWs). The damage caused by RWW larvae on rice cultivars with contrasting levels of resistance (?BRS Pampa CL'= 'Pamp': susceptible, 'BRS Atalanta' = 'Atal': resistant-antibiosis) was evaluated in two consecutive years in the field under seven infestation levels: 0, 2, 4, 6, 8, 10 and 20 adult couples per cage with plants. RESULTS Higher densities of adults increased the number of leaf-feeding scars and larvae on roots, respectively, at the rate <-8804;2.14 and 2.75 in Pamp and 2.23 and 2.48 in Atal, with the total number of larvae generated being lower in Atal. Grain yield was negatively impacted with increasing larval density on the roots, mainly by decreasing root volume and the number of grains per panicle. Root injury intensity and yield loss showed a nonlinear relationship. It was found that significant yield losses occurred with 8.37 larvae per plant in Pamp and 9.80 larvae per plant in Atal. CONCLUSION The results provided the first evidence of a tolerance limit for RWW larval damage that, even though similar between cultivars of contrasting resistance, corresponds to twice the current conventional level for larval control in Brazil. We also discuss here the potential of applying tolerance limits to ... Mostrar Tudo |
Palavras-Chave: |
Control level; Damage boundary; Damage curve; Tolerance limit. |
Thesagro: |
Arroz; Arroz Inundado; Oryza Sativa; Oryzophagus Oryzae; Praga; Praga de Planta. |
Thesaurus Nal: |
Integrated pest management. |
Categoria do assunto: |
-- O Insetos e Entomologia |
Marc: |
LEADER 02727naa a2200373 a 4500 001 2151713 005 2023-02-14 008 2023 bl uuuu u00u1 u #d 022 $a1526-4998 024 7 $ahttps://doi.org/10.1002/ps.7262$2DOI 100 1 $aPAZINI, J. DE B. 245 $aDifferential response to the South American rice water weevil (Coleoptera$bCurculionidae) damage of rice cultivars with contrasting levels of resistance: implications for field management.$h[electronic resource] 260 $c2023 520 $aBACKGROUND Oryzophagus oryzae (Costa Lima) (Coleoptera: Curculionidae) is a major pest of flooded rice paddies throughout South America, and species with very similar life histories are present in many rice-producing regions of the world (collectively rice water weevils, RWWs). The damage caused by RWW larvae on rice cultivars with contrasting levels of resistance (?BRS Pampa CL'= 'Pamp': susceptible, 'BRS Atalanta' = 'Atal': resistant-antibiosis) was evaluated in two consecutive years in the field under seven infestation levels: 0, 2, 4, 6, 8, 10 and 20 adult couples per cage with plants. RESULTS Higher densities of adults increased the number of leaf-feeding scars and larvae on roots, respectively, at the rate <-8804;2.14 and 2.75 in Pamp and 2.23 and 2.48 in Atal, with the total number of larvae generated being lower in Atal. Grain yield was negatively impacted with increasing larval density on the roots, mainly by decreasing root volume and the number of grains per panicle. Root injury intensity and yield loss showed a nonlinear relationship. It was found that significant yield losses occurred with 8.37 larvae per plant in Pamp and 9.80 larvae per plant in Atal. CONCLUSION The results provided the first evidence of a tolerance limit for RWW larval damage that, even though similar between cultivars of contrasting resistance, corresponds to twice the current conventional level for larval control in Brazil. We also discuss here the potential of applying tolerance limits to manage the RWW adult population in rice fields. 650 $aIntegrated pest management 650 $aArroz 650 $aArroz Inundado 650 $aOryza Sativa 650 $aOryzophagus Oryzae 650 $aPraga 650 $aPraga de Planta 653 $aControl level 653 $aDamage boundary 653 $aDamage curve 653 $aTolerance limit 700 1 $aGRÜTZMACHER, A. D. 700 1 $aSEIDEL, E. J. 700 1 $aVIEIRA, A. M. C. 700 1 $aPADILHA, A. C. 700 1 $aBRITO, G. G. de 700 1 $aBERNARDI, D. 700 1 $aBARRIGOSSI, J. A. F. 700 1 $aMARTINS, J. F. da S. 773 $tPest Management Science$gv. 79, n. 3, p. 947-958, Mar. 2023.
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Embrapa Clima Temperado (CPACT) |
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Registros recuperados : 4 | |
1. | | LAUMANN, R. A.; MORAES, M. C. B.; SILVA, J. P. da; VIEIRA, A. M. C.; SILVEIRA, S. da; BORGES, M. Egg parasitoid wasps as natural enemies of the neotropical stink bug Dichelops melacanthus. Pesquisa Agropecuária Brasileira, v.45, n.5, p.442-449, maio 2010.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia; Embrapa Unidades Centrais. |
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2. | | SEIDEL, E. J.; PAZINI, J. B.; TOMAZELLA, V. L. D.; VIEIRA, A. M. C.; SILVA, F. F.; MARTINS, J. F. S.; BARRIGOSSI, J. A. F. Predicting rice stem stink bug population dynamics based on GAMLSS models. Environmental Entomology, v. 49, n. 5, p. 1145-1154, Oct. 2020.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Arroz e Feijão. |
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3. | | PAZINI, J. DE B.; GRÜTZMACHER, A. D.; SEIDEL, E. J.; VIEIRA, A. M. C.; PADILHA, A. C.; BRITO, G. G. de; BERNARDI, D.; BARRIGOSSI, J. A. F.; MARTINS, J. F. da S. Differential response to the South American rice water weevil (Coleoptera: Curculionidae) damage of rice cultivars with contrasting levels of resistance: implications for field management. Pest Management Science, v. 79, n. 3, p. 947-958, Mar. 2023.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Clima Temperado. |
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4. | | SILVA, B. D. M.; CASTRO, E. A.; SOUZA, C. J. H. de; PAIVA, S. R.; SARTORI, R.; FRANCO, M. M.; AZEVEDO, H. C.; SILVA, T. A. S. N.; VIEIRA, A. M. C.; NEVES, J. P.; MELO, E. de O. A new polymorphism in the Growth and Differentiation Factor 9 (GDF9) gene is associated with increased ovulation rate and prolificacy in homozygous sheep. Animal Genetics, Oxford, v. 42, n. 1, p. 89-92, Jan. 2011.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Pecuária Sul; Embrapa Recursos Genéticos e Biotecnologia. |
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Registros recuperados : 4 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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