Lethal and sublethal toxicity of Fipronil and Imidacloprid on Psyttalia concolor (Hymenoptera: Braconidae).

Adan del Rio, Angeles and Viñuela Sandoval, Elisa and Bengochea Budia, Paloma and Budia Marigil, Maria Flor and Estal Padillo, Pedro Del and Medina Velez, Maria Pilar and Aguado Cortijo, Pedro Luis (2011). Lethal and sublethal toxicity of Fipronil and Imidacloprid on Psyttalia concolor (Hymenoptera: Braconidae).. "Journal of economic entomology", v. 104 (n. 5); pp. 1541-1549. ISSN 0022-0493.

Description

Title: Lethal and sublethal toxicity of Fipronil and Imidacloprid on Psyttalia concolor (Hymenoptera: Braconidae).
Author/s:
  • Adan del Rio, Angeles
  • Viñuela Sandoval, Elisa
  • Bengochea Budia, Paloma
  • Budia Marigil, Maria Flor
  • Estal Padillo, Pedro Del
  • Medina Velez, Maria Pilar
  • Aguado Cortijo, Pedro Luis
Item Type: Article
Título de Revista/Publicación: Journal of economic entomology
Date: October 2011
ISSN: 0022-0493
Volume: 104
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Producción Vegetal: Botánica y Protección Vegetal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Psyttalia concolor (Szèpligeti) (Hymenoptera: Braconidae) is a koinobiont endoparasitoid of several species of tephritid (Diptera) larvae, such as Bactrocera oleae (Gmelin) and Ceratitis capitata (Wiedemann). Here, we report on the effects of imidacloprid and fipronil on P. concolor females, when different routes of exposure were evaluated: residual contact (cover and bait sprays) and via treatment of host species. Moreover, the persistence of the bait formulated compound also was studied. For each experiment, lethal (mortality) and sublethal effects (parasitization rate or longevity) were studied. Fipronil produced 100% mortality irrespective of exposure route, and it was very persistent, because 34-d-old residues still produced this high mortality rate, being as toxic or even more toxic than the reference product dimethoate. Toxicity of imidacloprid depends on the mode of exposure, although always remained less toxic than dimethoate. Imidacloprid caused high mortality or sublethal effect to the progeny in cover sprays and when applied via treated host, being harmless in bait sprays application. In conclusion, our results suggest that fipronil should not be used in the field when the parasitoid is present. On the contrary, although imidacloprid is physiologically active against females of P. concolor, ecological selectivity may result through the use of bait treatment

More information

Item ID: 9753
DC Identifier: http://oa.upm.es/9753/
OAI Identifier: oai:oa.upm.es:9753
Official URL: http://www.entsoc.org/Pubs/Periodicals/JEE
Deposited by: Memoria Investigacion
Deposited on: 28 Nov 2011 08:38
Last Modified: 20 Apr 2016 18:04
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