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Feeding behaviour and mortality of Philaenus spumarius exposed to insecticides and their impact on Xylella fastidiosa transmission.
Lago, Clara; Cornara, Daniele; Minutillo, Serena Anna; Moreno, Aránzazu; Fereres, Alberto.
Afiliación
  • Lago C; Instituto de Ciencias Agrarias (ICA). Consejo Superior de Investigaciones Científicas (CSIC). Calle Serrano 115dpdo, Madrid, Spain.
  • Cornara D; Departamento de Producción Agraria, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas (ETSIAAB), Universidad Politécnica de Madrid (UPM), Madrid, Spain.
  • Minutillo SA; Instituto de Ciencias Agrarias (ICA). Consejo Superior de Investigaciones Científicas (CSIC). Calle Serrano 115dpdo, Madrid, Spain.
  • Moreno A; Department of Soil, Plant and Food Sciences, Entomological and Zoological Section, University of Bari Aldo Moro, Bari, Italy.
  • Fereres A; International Centre for Advanced Mediterranean Agronomic Studies - Institute of Bari (CIHEAM-Bari), Valenzano, Italy.
Pest Manag Sci ; 78(11): 4841-4849, 2022 Nov.
Article en En | MEDLINE | ID: mdl-35908181
BACKGROUND: Insecticides are essential, though controversial tools in modern pest management. Insecticides can slow the spread of key vector-borne plant pathogens, but often lead to inconsistent results given that insecticide use is generally focused on acute toxicity under no-choice conditions. Here, we analysed the lethal (survival) and sublethal (feeding behaviour) effects of six commercial products (acetamiprid, deltamethrin, spinosad, sulfoxaflor, pyrethrin and kaolin) on Philaenus spumarius, vector of the bacterium Xylella fastidiosa. Furthermore, we assessed the impact of insecticides displaying different degrees of acute toxicity against spittlebugs (highest to lowest: acetamiprid, pyrethrin and kaolin) on the transmission of X. fastidiosa by P. spumarius under both free-choice and no-choice conditions. RESULTS: Deltamethrin, acetamiprid and to a limited extent pyrethrin significantly altered the feeding behaviour of P. spumarius. Deltamethrin and acetamiprid were highly toxic against P. spumarius, but the mortality induced by exposure to pyrethrin was limited overall. By contrast, spinosad, sulfoxaflor and kaolin did not significantly impact P. spumarius feeding behaviour or survival. Under no-choice conditions, both pyrethrin and acetamiprid reduced the X. fastidiosa inoculation rate compared with kaolin and the control. On the other hand, pyrethrin reduced transmission, but acetamiprid failed to significantly affect bacterial inoculation under free-choice conditions. CONCLUSION: Pyrethrin was the only compound able to reduce X. fastidiosa transmission under both free-choice and no-choice conditions. Xylella fastidiosa management strategy based exclusively on the evaluation of insecticide acute toxicity under no-choice conditions would most likely fail to prevent, or slow, bacterial spread. © 2022 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Piretrinas / Hemípteros / Insecticidas Límite: Animals Idioma: En Revista: Pest Manag Sci Asunto de la revista: TOXICOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: España Pais de publicación: Reino Unido
Texto completo
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Piretrinas / Hemípteros / Insecticidas Límite: Animals Idioma: En Revista: Pest Manag Sci Asunto de la revista: TOXICOLOGIA Año: 2022 Tipo del documento: Article País de afiliación: España Pais de publicación: Reino Unido