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| Registros recuperados: 27 | |
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| SILVA, D. M. da; BUENO, A. de F.; ANDRADE, K.; STECCA, C. dos S.; NEVES, P. M. O. J.; OLIVEIRA, M. C. N. de. |
| We studied Spodoptera frugiperda development using different food sources in the laboratory and field. Newly hatched larvae were fed soybean, cotton, maize, wheat, and oat leaves. An artificial diet was used as the control. Duration of pre-pupal, pupal, and larva-adult period, pupal weight, sex ratio, survival, larva feeding preferences, oviposition preferences, and nutritional quality of different hosts were evaluated. Insects fed on wheat showed the shortest larva-adult period. The insects fed on cotton and soybean had longer larval development cycles and pupae of lower weight. Feeding preference was evident for third instar larvae and did not differ between wheat, oat, maize, and soybean, which were the preferred hosts. Moths oviposited to a greater... |
| Tipo: Separatas |
Palavras-chave: Lagarta do cartucho.; Entomologia.; Crop entomology.; Feeding behavior. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1058400 |
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| BARRETO, M. R.; GUIMARAES, C. T.; TEIXEIRA, F. F.; PAIVA, E.; VALICENTE, F. H.. |
| The total of 22 Baculovirus isolates surveyed in different corn producing regions in Brazil were used against fall armyworm, Spodoptera frugiperda (J.E. Smith). The viruses were purified and their suspensions were used to feed fall armyworm larvae from 4th and 5th instar. The mortality rate was checked daily and the infected larvae were frost after death, what generally occurred between the 5th and 7th day after virus ingestion. The 22 Baculovirus isolates were used in six concentrations (from 103 to 108 polyhedra/ml) and one check treatment with water. Mortality rate, larval period, pupal period, pupa weight and lethal concentration (LC50) were determined for all isolates. Significant differences were found among all isolates and different concentrations,... |
| Tipo: Artigo de periódico |
Palavras-chave: Lagarta do cartucho.; Bactéria; Zea Mays.. |
| Ano: 2005 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/489109 |
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| CASTRO, A. L. G.; CRUZ, I.; SILVA, I. F. da; PAULA, C. de S.; LEAO, M. L.; FERREIRA, T. E.; MENEZES, A. P. de J.. |
| O sucesso do controle biológico depende da capacidade de dispersão e dos aspectos biológicos do organismo a ser liberado num determinada área. O parasitóide de larva Eiphosoma vitticole tem grande potencial no controle da principal praga do milho, a Spodoptera frugiperda (Smith). O experimento foi conduzido na Embrapa Milho e Sorgo, em Sete Lagoas, MG, comparando uma cultivar convencional com outra similar, porém, geneticamente modificada (milho Bt) tanto em relação à praga como em relação ao inimigo natural. Observou-se a incidência maior de larvas de S. frugiperda em milho normal, porém, somente nos primeiros 15 dias após a emergência da planta. A partir daí houve uma igualdade em relação às duas cultivares. Uma das razões desta igualdade pode ser... |
| Tipo: Parte de livro |
Palavras-chave: Lagarta do cartucho.; Controle Biológico; Inimigo Natural.. |
| Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/660374 |
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| Registros recuperados: 27 | |
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