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Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
30/01/2017 |
Data da última atualização: |
08/02/2017 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
BENTIVENHA, J. P. F.; PAULA-MORAES, S. V.; BALDIN, E. L. L.; SPECHT, A.; SILVA, I. F. da; HUNT, T. E. |
Afiliação: |
JOSE P. F. BENTIVENHA, ESALQ, USP; SILVANA V. PAULA-MORAES, UNIVERSITY OF FLORIDA; EDSON L. L. BALDIN, UNIVERSIDADE ESTADUAL DE SAO PAULO; ALEXANDRE SPECHT, CPAC; IVANA F. da SILVA, USP; THOMAS E. HUNT, UNIVERSITY OF NEBRASKA. |
Título: |
Battle in the new world: Helicoverpa armigera versus Helicoverpa zea (Lepidoptera: Noctuidae). |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Plos One, v. 11, n. 2, e0167182, December 2016. |
Idioma: |
Inglês |
Conteúdo: |
Abstract: The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear. The introduction of H. armigera in Brazil has created a new scenario, where these Helicoverpa species might cohabit and interact with one another, affecting the prevalence of each species in the agroecosystem, integrated pest management, and insect resistance management. In this study, larval occurrence and proportion of these species in maize was assessed in three regions of Brazil during three crop seasons. Interaction between the species was evaluated in interspecific and intraspecific scenarios under laboratory and field conditions. Helicoverpa zea was predominant in Rio Grande do Sul and the Planaltina, DF (central Brazil). In western Bahia, H. zea was predominant in the first collection, but approximately equal in number to H armigera in the second crop season. Both species exhibit high cannibalism/predation rates, and larval size was the primary factor for larval survival in the interaction studies. Larva of H. zea had higher survival when interacting with H. armigera, indicating that H. zea has an advantage in intraguild interactions with H. armigera in maize. Overall, the results from this study indicate that maize might play a role as a source of infestation or a sink of insecticide or Bt protein unselected H. armigera populations, depending on the H. zea: H. armigera intraguild competition and adult movement in the landscape. MenosAbstract: The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear. The introduction of H. armigera in Brazil has created a new scenario, where these Helicoverpa species might cohabit and interact with one another, affecting the prevalence of each species in the agroecosystem, integrated pest management, and insect resistance management. In this study, larval occurrence and proportion of these species in maize was assessed in three regions of Brazil during three crop seasons. Interaction between the species was evaluated in interspecific and intraspecific scenarios under laboratory and field conditions. Helicoverpa zea was predominant in Rio Grande do Sul and the Planaltina, DF (central Brazil). In western Bahia, H. zea was predominant in the first collection, but approximately equal in number to H armigera in the second crop season. Both species exhibit high cannibalism/predation rates, and larval size was the primary factor for larval survival in the interaction studies. Larva of H. zea had higher survival when interacting with H. armigera, indicating that H. zea has an advantage in intraguild interactions with H. armigera in maize. Overall, the results from this study indicate that maize might play a role as a source of infestation or a sink of insecticide or Bt protein unselected H. armigera pop... Mostrar Tudo |
Palavras-Chave: |
Bahia; Brasil; Lagarta do milho; Ocorrencia de larvas; Planaltina; Rio grande do sul. |
Thesagro: |
Helicoverpa Zea; Milho; Praga de Planta. |
Thesaurus Nal: |
Helicoverpa armigera. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154216/1/journal.pone.0167182.pdf
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Marc: |
LEADER 02455naa a2200301 a 4500 001 2062091 005 2017-02-08 008 2016 bl uuuu u00u1 u #d 100 1 $aBENTIVENHA, J. P. F. 245 $aBattle in the new world$bHelicoverpa armigera versus Helicoverpa zea (Lepidoptera: Noctuidae).$h[electronic resource] 260 $c2016 520 $aAbstract: The corn earworm Helicoverpa zea (Boddie) and the old world bollworm Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) are allopatric species and occur in important agricultural crops. In maize, both species tend to infest the ear. The introduction of H. armigera in Brazil has created a new scenario, where these Helicoverpa species might cohabit and interact with one another, affecting the prevalence of each species in the agroecosystem, integrated pest management, and insect resistance management. In this study, larval occurrence and proportion of these species in maize was assessed in three regions of Brazil during three crop seasons. Interaction between the species was evaluated in interspecific and intraspecific scenarios under laboratory and field conditions. Helicoverpa zea was predominant in Rio Grande do Sul and the Planaltina, DF (central Brazil). In western Bahia, H. zea was predominant in the first collection, but approximately equal in number to H armigera in the second crop season. Both species exhibit high cannibalism/predation rates, and larval size was the primary factor for larval survival in the interaction studies. Larva of H. zea had higher survival when interacting with H. armigera, indicating that H. zea has an advantage in intraguild interactions with H. armigera in maize. Overall, the results from this study indicate that maize might play a role as a source of infestation or a sink of insecticide or Bt protein unselected H. armigera populations, depending on the H. zea: H. armigera intraguild competition and adult movement in the landscape. 650 $aHelicoverpa armigera 650 $aHelicoverpa Zea 650 $aMilho 650 $aPraga de Planta 653 $aBahia 653 $aBrasil 653 $aLagarta do milho 653 $aOcorrencia de larvas 653 $aPlanaltina 653 $aRio grande do sul 700 1 $aPAULA-MORAES, S. V. 700 1 $aBALDIN, E. L. L. 700 1 $aSPECHT, A. 700 1 $aSILVA, I. F. da 700 1 $aHUNT, T. E. 773 $tPlos One$gv. 11, n. 2, e0167182, December 2016.
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Embrapa Cerrados (CPAC) |
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Registro Completo
Biblioteca(s): |
Embrapa Clima Temperado. |
Data corrente: |
05/12/2011 |
Data da última atualização: |
05/12/2011 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
AGUILA, J. S. D.; ORTEGA, E. M. M.; AGUILA, L. S. H. D.; KLUGE, R. A. |
Afiliação: |
JUAN SAAVEDRA DEL AGUILA; EDWIN MOISÉS MARCOS ORTEGA; LILIA SICHMANN HEIFFIG DEL AGUILA, CPACT; RICARDO ALFREDO KLUGE. |
Título: |
Avaliação de diferentes concentrações de etileno no amadurecimento de frutos da mangueira 'tommy atkins' |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL DE FRUTICULTURA, 1., 2011, Campinas. Abstracts International Fruit Symposium: Advances in Fruit Production. Campinas-SP: IAC, 2011. |
Idioma: |
Português |
Palavras-Chave: |
Mangueira. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00602nam a2200145 a 4500 001 1908450 005 2011-12-05 008 2011 bl uuuu u00u1 u #d 100 1 $aAGUILA, J. S. D. 245 $aAvaliação de diferentes concentrações de etileno no amadurecimento de frutos da mangueira 'tommy atkins'$h[electronic resource] 260 $aIn: SIMPÓSIO INTERNACIONAL DE FRUTICULTURA, 1., 2011, Campinas. Abstracts International Fruit Symposium: Advances in Fruit Production. Campinas-SP: IAC$c2011 653 $aMangueira 700 1 $aORTEGA, E. M. M. 700 1 $aAGUILA, L. S. H. D. 700 1 $aKLUGE, R. A.
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