|
|
Registro Completo |
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
21/01/1997 |
Data da última atualização: |
03/02/2014 |
Autoria: |
VIANA, P. A. |
Afiliação: |
PAULO AFONSO VIANA, CNPMS. |
Título: |
The effects of the second generation European corn borer, Ostrinia nubilalis (Hubner) (Lepidoptera: Pyralidae) on harvest losses in field corn. |
Ano de publicação: |
1983 |
Fonte/Imprenta: |
1983. |
Páginas: |
126 p. |
Idioma: |
Inglês |
Notas: |
Tese (Doutorado) - Purdue University, West Lafayette. |
Conteúdo: |
Research was conducted in 1981 and 1982 to quatify losses due to stalk breakage and dropped ears caused by 2nd-generation European corn borer under present corn production systems in Indiana. Insecticide treated and untreated portions of corn fields were compared at all test locations. Artificial infestation was achieved by pinning 2 egg masses (near hatching) through the leaf midrib of the ear leaf during the period of pollen shed. Chlorpyrifos (0.96 kg a.i./ha) was applied 1 or 2 times using a solo 425R knapsack sprayer and a Hi-BoyR sprayer in 1981 and 1982 experiments, respectively. Control was determined by counting entrance holes in the stalk and cavities caused by corn borer feeding in the stalk and ear shank. Stalk breakage before harvest was categorized as to its location in the stalk as top, above-ear, below-ear and bottom. Plants with visible ear shank damage were noted. Ears dropped to the ground before harvest and unpicked ears after harvest were counted and collected. Number of entrance holes was reduced by insecticide application in all experiments. The number of stalk cavities was lower in insecticide=treated plots than in untreated plots in all experiments, although nor significantly different in the 1981 experiment. Insecticide application had an effect on number of the borer cavities in the ear shank only in the 1981 experiment. Grain weight was higher in plots with insecticide application than no-insecticide treatment in 1981. No difference in grain weight was detected in 1982. the number (...) MenosResearch was conducted in 1981 and 1982 to quatify losses due to stalk breakage and dropped ears caused by 2nd-generation European corn borer under present corn production systems in Indiana. Insecticide treated and untreated portions of corn fields were compared at all test locations. Artificial infestation was achieved by pinning 2 egg masses (near hatching) through the leaf midrib of the ear leaf during the period of pollen shed. Chlorpyrifos (0.96 kg a.i./ha) was applied 1 or 2 times using a solo 425R knapsack sprayer and a Hi-BoyR sprayer in 1981 and 1982 experiments, respectively. Control was determined by counting entrance holes in the stalk and cavities caused by corn borer feeding in the stalk and ear shank. Stalk breakage before harvest was categorized as to its location in the stalk as top, above-ear, below-ear and bottom. Plants with visible ear shank damage were noted. Ears dropped to the ground before harvest and unpicked ears after harvest were counted and collected. Number of entrance holes was reduced by insecticide application in all experiments. The number of stalk cavities was lower in insecticide=treated plots than in untreated plots in all experiments, although nor significantly different in the 1981 experiment. Insecticide application had an effect on number of the borer cavities in the ear shank only in the 1981 experiment. Grain weight was higher in plots with insecticide application than no-insecticide treatment in 1981. No difference in grain weig... Mostrar Tudo |
Palavras-Chave: |
Harvest; Loss; Maize; Pest. |
Thesagro: |
Colheita; Milho; Perda; Praga; Zea Mays. |
Thesaurus Nal: |
Ostrinia nubilalis. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02228nam a2200253 a 4500 001 1473413 005 2014-02-03 008 1983 bl uuuu m 00u1 u #d 100 1 $aVIANA, P. A. 245 $aThe effects of the second generation European corn borer, Ostrinia nubilalis (Hubner) (Lepidoptera$bPyralidae) on harvest losses in field corn. 260 $a1983.$c1983 300 $a126 p. 500 $aTese (Doutorado) - Purdue University, West Lafayette. 520 $aResearch was conducted in 1981 and 1982 to quatify losses due to stalk breakage and dropped ears caused by 2nd-generation European corn borer under present corn production systems in Indiana. Insecticide treated and untreated portions of corn fields were compared at all test locations. Artificial infestation was achieved by pinning 2 egg masses (near hatching) through the leaf midrib of the ear leaf during the period of pollen shed. Chlorpyrifos (0.96 kg a.i./ha) was applied 1 or 2 times using a solo 425R knapsack sprayer and a Hi-BoyR sprayer in 1981 and 1982 experiments, respectively. Control was determined by counting entrance holes in the stalk and cavities caused by corn borer feeding in the stalk and ear shank. Stalk breakage before harvest was categorized as to its location in the stalk as top, above-ear, below-ear and bottom. Plants with visible ear shank damage were noted. Ears dropped to the ground before harvest and unpicked ears after harvest were counted and collected. Number of entrance holes was reduced by insecticide application in all experiments. The number of stalk cavities was lower in insecticide=treated plots than in untreated plots in all experiments, although nor significantly different in the 1981 experiment. Insecticide application had an effect on number of the borer cavities in the ear shank only in the 1981 experiment. Grain weight was higher in plots with insecticide application than no-insecticide treatment in 1981. No difference in grain weight was detected in 1982. the number (...) 650 $aOstrinia nubilalis 650 $aColheita 650 $aMilho 650 $aPerda 650 $aPraga 650 $aZea Mays 653 $aHarvest 653 $aLoss 653 $aMaize 653 $aPest
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registros recuperados : 317 | |
13. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VIANA, P. A. Manejo de pragas na cultura do milho. In: CONGRESSO NACIONAL DE MILHO E SORGO, 23., 2000, Uberlândia, MG. A inovação tecnológica e a competividade no contexto dos mercados globalizados: resumos expandidos. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Uberlândia: Universidade Federal de Uberlandia, 2000. 1 CD-ROM.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Milho e Sorgo. |
| ![Visualizar detalhes do registro](/consulta/web/img/visualizar.png) ![Acesso ao objeto digital](/consulta/web/img/pdf.png) ![Imprime registro no formato completo](/consulta/web/img/print.png) |
16. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VIANA, P. A. INTSORMIL. In: EMBRAPA. Centro de Nacional de Pesquisa de Milho e Sorgo. Relatório técnico anual do Centro Nacional de Pesquisa de Milho e Sorgo 1980-84. Sete Lagoas, 1986. p. 177-178.Biblioteca(s): Embrapa Milho e Sorgo. |
| ![Visualizar detalhes do registro](/consulta/web/img/visualizar.png) ![Acesso ao objeto digital](/consulta/web/img/pdf.png) ![Imprime registro no formato completo](/consulta/web/img/print.png) |
17. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VIANA, P. A. Lagarta-elasmo. In: SALVADORI, J. R.; ÁVILA, C. J.; SILVA, M. T. B. da. (Ed.). Pragas de solo no Brasil. Passo Fundo: Embrapa Trigo; Dourados: Embrapa Agropecuária Oeste; Cruz Alta: Fundacep Fecotrigo, 2004. cap. 13, p. 379-408.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Milho e Sorgo. |
| ![Visualizar detalhes do registro](/consulta/web/img/visualizar.png) ![Acesso restrito ao objeto digital](/consulta/web/img/lock.png) ![Imprime registro no formato completo](/consulta/web/img/print.png) |
18. | ![Imagem marcado/desmarcado](/consulta/web/img/desmarcado.png) | VIANA, P. A. Insetigação. In: COSTA, E. F.; VIEIRA, R. F.; VIANA, P. A. Quimigação: aplicação de produtos químicos e biológicos via irrigação. Sete Lagoas: EMBRAPA-CNPMS; Brasilia: EMBRAPA-SPI, 1994. cap. 10, p. 249-268.Tipo: Capítulo em Livro Técnico-Científico |
Biblioteca(s): Embrapa Milho e Sorgo. |
| ![Visualizar detalhes do registro](/consulta/web/img/visualizar.png) ![Acesso ao objeto digital](/consulta/web/img/pdf.png) ![Imprime registro no formato completo](/consulta/web/img/print.png) |
Registros recuperados : 317 | |
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|