Catálogo de publicaciones - tesis
Título de Acceso Abierto
Efecto de franjas marginales de Brassica campestris L. en repollo sobre Plutella xylostella (Lepidoptera:Plutellidae) y sus enemigos naturales
Guillermo Ignacio Pérez Isabel Bertolaccini Jorge E. Frana Eleodoro Del Valle Roberto Scotta Cristina Arregui
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Resumen/Descripción – provisto por el repositorio digital
The effectiveness of plant diversity in agricultural systems is considered as an important resource in wildlife conservation charity, by providing prey or hosts, shelters, and alternative food sources such as nectar and pollen, but for many authors positive effect have yet to be evidenced. Plutella xylostella is an insect oligophagous, multivoltine and cosmopolitan, considered key pest of most crops of the Brassicaceae family, to whose control is allocated annually, worldwide, nearly 1 billion dollars. In recent years, the flaws in the control of this pest have been due to cross and multiple resistance to insecticides of different mode of action, including Bacillus thuringiensis, which is why it is necessary to implement alternatives of control tactics such as the establishment and increase of natural enemies in agricultural systems. The aim of this study was to determine the effect of marginal strips of B. campestris in cabbage crops on the pest and its major summer transplants a marginal strip B. campestris. Lot settler in the four treatments, with marginal fringe, with and without application of agrochemicals, without marginal fringe agrochemical applications and a witness,without marginal fringe without sprays. Of each were monitored weekly larvae and pupae stage of P. xylostella, in five cabbage plants. The immature larvae were ranked small, medium, large, and pupae were reared in the laboratory to determine the lepidopteran adult emergence or emergence of parasitoids. It was determined that: the main parasitoids was Cotesia plutellae in small and medium larvae and Oomyzus sokolowskii in large larvae and pupae; spring transplants have less pest attack due to less favorable weather conditions, the marginal strips were not effect on the pest attack, in the amount of parasitoids and reproductive parameters.Palabras clave – provistas por el repositorio digital
Plutella xylostella; Brassicaceae; Bacillus thuringiensis; Brassica campestris; Cotesia plutellae; Oomyzus sokolowskii
Disponibilidad
| Institución detectada | Año de publicación | Navegá | Descargá | Solicitá |
|---|---|---|---|---|
| No requiere | 2013 | Biblioteca Virtual de la Universidad Nacional del Litoral (SNRD) |
|
Información
Tipo de recurso:
tesis
Idiomas de la publicación
- español castellano
País de edición
Argentina
Fecha de publicación
2013-12-10