| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Cerrados. |
|
Data corrente: |
18/12/2009 |
|
Data da última atualização: |
07/10/2010 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BASTOS, C. S.; TORRES, J. B.; SUINAGA, F. A. |
|
Afiliação: |
C. S. BASTOS, UnB/FAV; J. B. TORRES, UFRPE; FABIO AKIYOSHI SUINAGA, CPAC. |
|
Título: |
Parasitism of cotton leafworm Alabama argillacea eggs by Trichogramma pretiosum in commercial cotton fields. |
|
Ano de publicação: |
2009 |
|
Fonte/Imprenta: |
Journal of Applied Entomology, 2009. |
|
DOI: |
10.1111/j.1439-0418.2009.01492x |
|
Idioma: |
Português |
|
Conteúdo: |
Release of natural enemies in commercial fields in challenging and has been inconsistent in the results achieved. This work discusses the augmentative releases of Trichogramma pretiosum to control the cotton leafworm (CLW) Alabama argillacea and also examines the parasitoid-host interaction under grower field conditions. The tratments consisted of fields with and without releases of T. pretiosum set up in Primavera do Leste and Campo Verde counties, MT, Brazil, during three different seasons (2003 and 2004 dry and 2004 regular summer seasons). Trichogrammar wasps werw weekly released in the treated fields through-out the entire sampling period (14-15 weel period) at a rate of 1000 000 wasps per hectare. One-way repeated measures analysis of variance was performed for the number of parasitized eggs, followed by a meta-analysis procedure to determine the contribution of T. pretiosum release on overall parasitism. In addition, regression analysis was conducted with each season's data sets to study the relationship of the host density and parasitism response by T. pretiosum. Th overall results of Trichogramma augmentative releases did not result in significant increase of CLW egg parasitism beyond the natural parasitism in the areas studied. However, based on Cohen's d effect sizes from the meta-analysis, the parasitism rate was greater in fields under T. pretiosum releases during four out of 15 weeks surveyed. These findings are encouraging as they are evidence that T. pretiosum is able to maintain a considerable level of parasitism under commercial field conditions, highlighting their potential value in large-scale commercial areas of cotton as previously found at the small and diverse farming scale. Future studies should address the potential of early-season, low density releases of the parasitoid. MenosRelease of natural enemies in commercial fields in challenging and has been inconsistent in the results achieved. This work discusses the augmentative releases of Trichogramma pretiosum to control the cotton leafworm (CLW) Alabama argillacea and also examines the parasitoid-host interaction under grower field conditions. The tratments consisted of fields with and without releases of T. pretiosum set up in Primavera do Leste and Campo Verde counties, MT, Brazil, during three different seasons (2003 and 2004 dry and 2004 regular summer seasons). Trichogrammar wasps werw weekly released in the treated fields through-out the entire sampling period (14-15 weel period) at a rate of 1000 000 wasps per hectare. One-way repeated measures analysis of variance was performed for the number of parasitized eggs, followed by a meta-analysis procedure to determine the contribution of T. pretiosum release on overall parasitism. In addition, regression analysis was conducted with each season's data sets to study the relationship of the host density and parasitism response by T. pretiosum. Th overall results of Trichogramma augmentative releases did not result in significant increase of CLW egg parasitism beyond the natural parasitism in the areas studied. However, based on Cohen's d effect sizes from the meta-analysis, the parasitism rate was greater in fields under T. pretiosum releases during four out of 15 weeks surveyed. These findings are encouraging as they are evidence that T. pretiosu... Mostrar Tudo |
|
Thesagro: |
Algodão; Gossypium hirsutum; Parasitismo. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02398naa a2200193 a 4500
001 1578362
005 2010-10-07
008 2009 bl --- 0-- u #d
024 7 $a10.1111/j.1439-0418.2009.01492x$2DOI
100 1 $aBASTOS, C. S.
245 $aParasitism of cotton leafworm Alabama argillacea eggs by Trichogramma pretiosum in commercial cotton fields.
260 $c2009
520 $aRelease of natural enemies in commercial fields in challenging and has been inconsistent in the results achieved. This work discusses the augmentative releases of Trichogramma pretiosum to control the cotton leafworm (CLW) Alabama argillacea and also examines the parasitoid-host interaction under grower field conditions. The tratments consisted of fields with and without releases of T. pretiosum set up in Primavera do Leste and Campo Verde counties, MT, Brazil, during three different seasons (2003 and 2004 dry and 2004 regular summer seasons). Trichogrammar wasps werw weekly released in the treated fields through-out the entire sampling period (14-15 weel period) at a rate of 1000 000 wasps per hectare. One-way repeated measures analysis of variance was performed for the number of parasitized eggs, followed by a meta-analysis procedure to determine the contribution of T. pretiosum release on overall parasitism. In addition, regression analysis was conducted with each season's data sets to study the relationship of the host density and parasitism response by T. pretiosum. Th overall results of Trichogramma augmentative releases did not result in significant increase of CLW egg parasitism beyond the natural parasitism in the areas studied. However, based on Cohen's d effect sizes from the meta-analysis, the parasitism rate was greater in fields under T. pretiosum releases during four out of 15 weeks surveyed. These findings are encouraging as they are evidence that T. pretiosum is able to maintain a considerable level of parasitism under commercial field conditions, highlighting their potential value in large-scale commercial areas of cotton as previously found at the small and diverse farming scale. Future studies should address the potential of early-season, low density releases of the parasitoid.
650 $aAlgodão
650 $aGossypium hirsutum
650 $aParasitismo
700 1 $aTORRES, J. B.
700 1 $aSUINAGA, F. A.
773 $tJournal of Applied Entomology, 2009.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Cerrados (CPAC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Agrobiologia. |
|
Data corrente: |
23/10/2012 |
|
Data da última atualização: |
23/10/2012 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
MEIRELES, I. P.; SILVA, B. F. da; DECO, T. A. de; ARAUJO, E. da S.; ESPINDOLA J. A.; GUERRA, J. G. M. |
|
Afiliação: |
UFRRJ; UFRRJ; UFRRJ; EDNALDO DA SILVA ARAUJO, CNPAB; BOLSISTA DA EMBRAPA AGROBIOLOGIA; BOLSISTA DA EMBRAPA AGROBIOLOGIA. |
|
Título: |
Uso de plantas de cobertura do solo na sucessão de cultivos de hortaliças, sob manejo agroecológico. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
In: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 12., 2012. Economia verde, sustentabilidade e erradicação da pobreza: caderno de resumos. Seropédica: Embrapa Agrobiologia, 2012. |
|
Idioma: |
Português |
|
Palavras-Chave: |
Fixação biologica de nitrogênio; Legumininosas; Transição agroecológica. |
|
Thesagro: |
Adubação Verde. |
|
Categoria do assunto: |
-- |
|
URL: |
https://www.ojs.cnpab.embrapa.br/index.php/scjd/article/view/1311/294
|
|
Marc: |
LEADER 00807nam a2200205 a 4500
001 1937570
005 2012-10-23
008 2012 bl uuuu u01u1 u #d
100 1 $aMEIRELES, I. P.
245 $aUso de plantas de cobertura do solo na sucessão de cultivos de hortaliças, sob manejo agroecológico.$h[electronic resource]
260 $aIn: SEMANA CIENTÍFICA JOHANNA DÖBEREINER, 12., 2012. Economia verde, sustentabilidade e erradicação da pobreza: caderno de resumos. Seropédica: Embrapa Agrobiologia$c2012
650 $aAdubação Verde
653 $aFixação biologica de nitrogênio
653 $aLegumininosas
653 $aTransição agroecológica
700 1 $aSILVA, B. F. da
700 1 $aDECO, T. A. de
700 1 $aARAUJO, E. da S.
700 1 $aESPINDOLA J. A.
700 1 $aGUERRA, J. G. M.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Agrobiologia (CNPAB) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
