Long-term foliar persistence and efficacy of spinosad against beet armyworm under greenhouse conditions.

Santís, Erika L.; Hernández, Luis A.; Martínez, Ana M.; Campos, Jesús; Figueroa, J.I.; Lobit, Philippe; Chavarrieta, Juan M.; Viñuela Sandoval, Elisa; Smagghe, Guy y Pineda, Samuel (2012). Long-term foliar persistence and efficacy of spinosad against beet armyworm under greenhouse conditions.. "Pest Management Science", v. 68 (n. 6); pp. 914-921. ISSN 1526-498X. https://doi.org/10.1002/ps.3250.

Descripción

Título: Long-term foliar persistence and efficacy of spinosad against beet armyworm under greenhouse conditions.
Autor/es:
  • Santís, Erika L.
  • Hernández, Luis A.
  • Martínez, Ana M.
  • Campos, Jesús
  • Figueroa, J.I.
  • Lobit, Philippe
  • Chavarrieta, Juan M.
  • Viñuela Sandoval, Elisa
  • Smagghe, Guy
  • Pineda, Samuel
Tipo de Documento: Artículo
Título de Revista/Publicación: Pest Management Science
Fecha: Diciembre 2012
Volumen: 68
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Producción Vegetal: Botánica y Protección Vegetal [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

BACKGROUND: The immediate lethality caused by spinosad has been widely studied on Spodoptera exigua (H ¿ ubner). However, long-term effects can also provide valuable information on insecticide toxic action. Here, the persistence of spinosad on Capsicum annuum L. foliage and the lethal and sublethal effects of greenhouse-aged foliar residues of this insecticide on third instars of S. exigua are reported. RESULTS: Foliage was collected at 0, 3, 5, 10, 20, 30, 40 and 50 days after application, and spinosad residues were measured. Residues decreased over time according to first-order kinetics. The average rate constant and half-life of disappearance were 4.44×10?3 and156 daysand5.80×10?3 and120 days for60and120 mg L?1 respectively. Larval mortalitygradually decreased, corresponding to the residues, but was still appreciable (35 and 65% for 60 and 120 mg L?1 respectively) when the larvae were fed with foliage collected 50 days after treatment. Subsequently, pupal development was reduced and varied between 20 and 60% and between 21 and 41% for 60 and 120 mg L?1, respectively, in all ages of leaf residues that were bioassayed. At all time points, the consumption rate by the larvae was reduced between 62 and 84% for both concentrations that were bioassayed. CONCLUSION: It is concluded that, under the present greenhouse conditions, the degradation of spinosad was slower than that reported by other authors in the field, and, because of that, its residues could cause lethal and sublethal effects to S. exigua larvae.

Más información

ID de Registro: 15969
Identificador DC: http://oa.upm.es/15969/
Identificador OAI: oai:oa.upm.es:15969
Identificador DOI: 10.1002/ps.3250
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1002/ps.3250/abstract
Depositado por: Memoria Investigacion
Depositado el: 27 Jun 2013 16:49
Ultima Modificación: 21 Abr 2016 16:17
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