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BUENO, R. C. O. de F.; BUENO, A. de F.; PARRA, J. R. P.; VIEIRA, S. S.; OLIVEIRA, L. J. de. |
ABSTRACT. Biological characteristics and parasitism capacity of Trichogramma pretiosum Riley (Hymenoptera, Trichogrammatidae) on eggs of Spodoptera frugiperda (J. E. Smith) (Lepidoptera, Noctuidae). This study aimed at evaluating the biological characteristics and the capacity of parasitism of a Trichogramma pretiosum Riley, 1869 (Hymenoptera, trichogrammatidae) strain (T. pretiosum RV) collected in Rio Verde County, State of Goiás, Brazil. The study was carried out on eggs of Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera, Noctuidae) and conducted under controlled environmental conditions at different constant temperatures. The biological parameters determined were: developmental time (egg-adult; days); emergence (%); sex ratio; number of... |
Tipo: Separatas |
Palavras-chave: Inseto para controle integrado.; Lagarta; Pupa; Controle biológico; Temperatura; Spodoptera Frugiperda.; Insect larvae; Insect eggs; Biological control; Parasitoids; Ambient temperature; Insect control.. |
Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/858634 |
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SILVA, M. C. M. da; SARTO, R. P. del; LUCENA, W. A.; RIGDEN, D. J.; TEIXEIRA, F. R.; BEZERRA, C. de A.; ALBUQUERQUE, E. V. S.; GROSSI DE SA, M. F.. |
Numerous species of insect pests attack cotton plants, out of which the cotton boll weevil (Anthonomus grandis) is the main insect in Brazil and must be controlled to avert large economic losses. Like other insect pests, A. grandis secretes a high level of -amylases in the midgut lumen, which are required for digestion of carbohydrates. Thus, -amylase inhibitors (-AIs) represent a powerful tool to apply in the control of insect pests. Here, we applied DNA shuffling and phage display techniques and obtained a combinatorial library containing 108 ˛-AI variant forms. From this library, variants were selected exhibiting in vitro affinity for cotton boll weevil -amylases. Twenty-six variant sequences were cloned into plant expression vectors and... |
Tipo: Separatas |
Palavras-chave: Alfa-amylase inhibitors; In vitro molecular evolution.; Anthonomus Grandis.; DNA shuffling; Insect control.. |
Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/979826 |
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