Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Foliar persistence and residual activity of methoxyfenozide against beet armiworm (Lepidoptera: Noctuidae)
Año:2013
Áreas de investigación
  • Producción vegetal
Datos
Descripción
A greenhouse study was conducted to investigate the persistence of methoxyfenozide in pepper (Capsicum annuum L.) foliage. An aqueous suspension of methoxyfenozide was sprayed on pepper plants at concentrations of 72 and 144 mg of active ingredient (a.i.)/L. Foliage was collected at different intervals of time (0, 3, 5, 10, 20, 30, 40, and 50 days) after the treatment, and the methoxyfenozide residue was measured by high-performance liquid chromatography. The foliage was also used in bioassays to determine the residual toxicity on and the consumption rate of the third-instar larvae of the beet armyworm, Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae). The methoxyfenozide concentrations observed after 50 days had decreased to 19 and 69 ?g/g per sample, corresponding to a loss of 61% and 28% from the application concentrations of 72 and 144 mg a.i./L, respectively. When fitting a first-order kinetics degradation model, the half-life (DT50) of this compound was 76 days. Both application concentrations of methoxyfenozide caused a high mortality rate (?97%) when the larvae were fed the pepper foliage collected at all of the time intervals. Lastly, at all of the time points, the consumption rate by the larvae was reduced to between 57% and 92% for both concentrations that were bioassayed. Our results indicate that, under the present greenhouse conditions, the degradation of methoxyfenozide was slower than that reported by other authors and that its residues were highly toxic to S. exigua larvae. The implications of these results for the management programs of this pest are discussed.0
Internacional
Si
JCR del ISI
Si
Título de la revista
Insect Science
ISSN
1672-9609
Factor de impacto JCR
1,786
Información de impacto
Volumen
290
DOI
Número de revista
Desde la página
734
Hasta la página
742
Mes
SIN MES
Ranking
24/87
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: O.U. Aguirre
  • Autor: A.M. Martinez
  • Autor: J. Campos
  • Autor: L.A. Hernández
  • Autor: J.I. Figueroa
  • Autor: P. Lobit
  • Autor: Elisa Viñuela Sandoval (UPM)
  • Autor: J.M. Chavarrieta
  • Autor: G. Smagghe
  • Autor: S Pineda
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Manejo Integrado de Plagas
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)