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| Registros recuperados : 55 | |
| 3. |  | SILVA, M. A. D.; GONÇALVES, E. P.; VIEIRA, R. D. Influência da disponibilidade hídrica sobre o potencial fisiológico de sementes de mostarda (Brassica juncea L.). Informativo Abrates, Londrina, v. 13, n. 3, p. 416, set. 2003. Trabalho apresentado no 13º Congresso Brasileiro de Sementes, 2003, Londrina. Resumo.| Biblioteca(s): Embrapa Hortaliças. |
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| 5. | | MACEDO, M.; FERREIRA, A. R.; GONCALVES, E. P. Levantamento floristico da familia Orchidaceae em uma area de construcao da APM-Manso, Chapada dos Guimaraes, Mato Grosso. In: SIMPOSIO SOBRE RECURSOS NATURAIS E SOCIO-ECONOMICOS DO PANTANAL, 3., 2000, Corumba,MS. Os desafios do Novo Milenio: resumos. Corumba: Embrapa Pantanal, 2000. p. 228.| Biblioteca(s): Embrapa Cerrados. |
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| 14. | | CRUZ, I.; FIGUEIREDO, M. L. C.; GONCALVES, E. P.; LIMA, D. A. N.; DINIZ, E. E. Efeito da idade de lagartas de Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) no desempenho do parasitoide Campoletis flavicincta (Ashmead) (Hymenoptera: Ichneumonidae) e consumo foliar por lagartas parasitadas e não-parasitadas. Anais da Sociedade Entomológica do Brasil, Jaboticabal, v. 26, n. 2, p. 229-234, 1997.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 17. | | GONCALVES, E. P.; CRUZ, I.; FIGUEIREDO, M. L. C.; CIOCIOLA, A. I. Efeito do produto 'Spinosad' sobre lagartas de Spodoptera frugiperda Smith e sobre seus inimigos naturais, o predador Doru luteipes Scudder e o parasitoide Campoletis flavicincta Ashmead. In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 16.; ENCONTRO NACIONAL DE FITOSSANITARISTAS, 7., 1997, Salvador. Resumos... Salvador: SEB/EMBRAPA-CNPMF, 1997. p. 177.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 55 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
10/09/2002 |
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Data da última atualização: |
07/06/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CRUZ, I.; GONÇALVES, E. P.; FIGUEIREDO, M. de L. C. |
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Afiliação: |
IVAN CRUZ, CNPMS. |
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Título: |
Effect of a nuclear polyhedrosis virus on Spodoptera frugiperda (Smith) (Lepidoptera:noctuidae) larvae, its damage and yield of maize crop. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 1, n. 2, p. 20-27, maio/ago. 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
The efficiency of Baculovirus in a wettable powder formulation to control the fall armyworm Spodoptera frugiperda (Smith) was evaluated using variations of the recommended dose of 50 grams per hectare (2.5 x 1011 polyhedron inclusion bodies - PIB ha-1): 50 or 100 g ha-1 applied once, and variations of two applications at seven-day intervals, of 25+25, 25 + 50, 50+25 and 50+50 g ha-1, compared to untreated plots. The treatments were arranged in a randomized complete block design with six replications. Each plant at 6-8 or 8-10-leaf growth stages, was artificially infested with 10 newly hatched larvae. The virus suspension (300 L ha-1) was applied 24 hours after larvae infestation using a back-pack-manual sprayer at 40 PSI (2.8 kg cm-2) and a regular flat fan nozzle. Larval mortality rate obtained from plots with the application of 50 g of Baculovirus wettable formulation ha-1, at once (96.2%), was significantly higher than that obtained with the application of 25+25 g ha-1 (85.3%) or 25 + 50 g ha-1 (87.8%). However, it was lower than that obtained from the other virus treatments, which had no significant difference among them (mean of 99.2%). The damage caused by S. frugiperda on the leaves of plants of untreated plots (average of 4.5 in an visual scale from 1 to 5) was significantly different from that observed in plots sprayed with virus (1.75 to 2.33). Plants protected with the virus produced significantly higher yield (mean of 7,577 kg ha-1) than plants unprotected (6,140 kg ha-1), that is, 23.4% higher. MenosThe efficiency of Baculovirus in a wettable powder formulation to control the fall armyworm Spodoptera frugiperda (Smith) was evaluated using variations of the recommended dose of 50 grams per hectare (2.5 x 1011 polyhedron inclusion bodies - PIB ha-1): 50 or 100 g ha-1 applied once, and variations of two applications at seven-day intervals, of 25+25, 25 + 50, 50+25 and 50+50 g ha-1, compared to untreated plots. The treatments were arranged in a randomized complete block design with six replications. Each plant at 6-8 or 8-10-leaf growth stages, was artificially infested with 10 newly hatched larvae. The virus suspension (300 L ha-1) was applied 24 hours after larvae infestation using a back-pack-manual sprayer at 40 PSI (2.8 kg cm-2) and a regular flat fan nozzle. Larval mortality rate obtained from plots with the application of 50 g of Baculovirus wettable formulation ha-1, at once (96.2%), was significantly higher than that obtained with the application of 25+25 g ha-1 (85.3%) or 25 + 50 g ha-1 (87.8%). However, it was lower than that obtained from the other virus treatments, which had no significant difference among them (mean of 99.2%). The damage caused by S. frugiperda on the leaves of plants of untreated plots (average of 4.5 in an visual scale from 1 to 5) was significantly different from that observed in plots sprayed with virus (1.75 to 2.33). Plants protected with the virus produced significantly higher yield (mean of 7,577 kg ha-1) than plants unprotected (6,140... Mostrar Tudo |
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Thesagro: |
Controle biológico; Praga de planta. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/30705/1/Effect-nuclear.pdf
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Marc: |
LEADER 02143naa a2200169 a 4500
001 1485760
005 2018-06-07
008 2002 bl uuuu u00u1 u #d
100 1 $aCRUZ, I.
245 $aEffect of a nuclear polyhedrosis virus on Spodoptera frugiperda (Smith) (Lepidoptera$bnoctuidae) larvae, its damage and yield of maize crop.$h[electronic resource]
260 $c2002
520 $aThe efficiency of Baculovirus in a wettable powder formulation to control the fall armyworm Spodoptera frugiperda (Smith) was evaluated using variations of the recommended dose of 50 grams per hectare (2.5 x 1011 polyhedron inclusion bodies - PIB ha-1): 50 or 100 g ha-1 applied once, and variations of two applications at seven-day intervals, of 25+25, 25 + 50, 50+25 and 50+50 g ha-1, compared to untreated plots. The treatments were arranged in a randomized complete block design with six replications. Each plant at 6-8 or 8-10-leaf growth stages, was artificially infested with 10 newly hatched larvae. The virus suspension (300 L ha-1) was applied 24 hours after larvae infestation using a back-pack-manual sprayer at 40 PSI (2.8 kg cm-2) and a regular flat fan nozzle. Larval mortality rate obtained from plots with the application of 50 g of Baculovirus wettable formulation ha-1, at once (96.2%), was significantly higher than that obtained with the application of 25+25 g ha-1 (85.3%) or 25 + 50 g ha-1 (87.8%). However, it was lower than that obtained from the other virus treatments, which had no significant difference among them (mean of 99.2%). The damage caused by S. frugiperda on the leaves of plants of untreated plots (average of 4.5 in an visual scale from 1 to 5) was significantly different from that observed in plots sprayed with virus (1.75 to 2.33). Plants protected with the virus produced significantly higher yield (mean of 7,577 kg ha-1) than plants unprotected (6,140 kg ha-1), that is, 23.4% higher.
650 $aControle biológico
650 $aPraga de planta
700 1 $aGONÇALVES, E. P.
700 1 $aFIGUEIREDO, M. de L. C.
773 $tRevista Brasileira de Milho e Sorgo, Sete Lagoas$gv. 1, n. 2, p. 20-27, maio/ago. 2002.
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Embrapa Milho e Sorgo (CNPMS) |
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