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Memorias de investigación
Artículos en revistas:
Lethal and sublethal effects on Chrsyoperla carnea larva and the influence of rainfastness in the pesticide degradation pattern over time
Año:2016
Áreas de investigación
  • Entomología
Datos
Descripción
The predator Chrysoperla carnea is a model species for the study of non-target effects of pesticides under different scenarios: registration of plant protection products under the European Union and effects of the Bt toxin. Laboratory and persistence studies were carried out with six pesticides currently used in corn crops in Spain that were applied at their maximum field recommended concentrations. The assessed end-points were larval mortality, survivorship until adult stage, duration of the larval and pupal periods, fecundity, fertility and sex ratio of the emerged adults. Based on the total effect (lethal and sublethal) caused to L3 larvae in contact with fresh residues in the laboratory, pendimethalin was harmless (IOBC 1), lambda-cyhalothrin, abamectin, and hexythiazox were slightly harmful (IOBC 2), deltamethrin was moderately harmful (IOBC 3) and chlorpyrifos was harmful (IOBC 4). Afterwards, the residues of the two most toxic pesticides in the lab (deltamethrin and chlorpyrifos) were aged under greenhouse conditions (22 ± 2 °C, 40 ± 10 % R.H., 16.9 ?mol m?2 s?1 UV radiation) in the presence and absence of artificial rainfall (10 l m?2 h?1, applied 24 h after pesticide application). Deltamethrin was classified as short lived (IOBC A) in both cases. However, degradation of chlorpyrifos residues was accelerated in the presence of rainfall, leading to the classification as slightly persistent (IOBC B), while in absence of rainfall it behaved as persistent (IOBC D). Every pesticide can be recommended for inclusion in corn IPM programs where the predator is present except chlorpyrifos that exhibited high direct toxicity in the lab and prolonged residual action even in the presence of rainfall.
Internacional
Si
JCR del ISI
Si
Título de la revista
Ecotoxicology
ISSN
0963-9292
Factor de impacto JCR
2,329
Información de impacto
Volumen
25
DOI
Número de revista
5
Desde la página
845
Hasta la página
855
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Jader Braga Maia (Universidad de Lavras)
  • Autor: Geraldo Andrade Carvalho (Universidad de Lavras)
  • Autor: Maria Pilar Medina Velez (UPM)
  • Autor: Agustín Garzón
  • Autor: Pablo da Costa Gontijo (Universidad de Lavras)
  • Autor: Elisa Viñuela Sandoval (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Manejo Integrado de Plagas
  • Departamento: Producción Agraria
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