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Artículo

Feeding Behaviour of a Pyrethroid-Resistant Strain of the German Cockroach Blattella germanica (Linnaeus, 1767)

Boné, EmilianoIcon ; Araoz, BeatrizIcon ; Gonzalez Audino, Paola AndreaIcon ; Sfara, ValeriaIcon
Fecha de publicación: 04/2022
Editorial: Sociedade Entomológica do Brasil
Revista: Neotropical Entomology
ISSN: 1678-8052
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otros Tópicos Biológicos

Resumen

Many authors report biological differences among insecticide-resistant pest species, mainly associated with parameters of life history, but only a few studies approach differences at the behavioural level. Feeding behaviour in Blattella germanica (L.) is modulated by the detection of chemical volatiles emitted from food sources in order to be located a long-median distance, and also by the physicochemical properties of food. This work aimed to study the differences in the feeding behaviour of a susceptible and a pyrethroid-resistant strain of B. germanica, in the location and exploitation of a food source. Resistant males showed a lower performance in the feeding behaviour compared to susceptible males. Particularly, the time taken to locate the source was significantly higher in the resistant individuals, suggesting a lower capacity in the detection of food odours. In addition, although the Intake rate was negatively related to the stiffness of food for both strains, resistant individuals showed a lower intake rate compared to susceptible ones, when exploiting a food source of the same stiffness. In a control context, the phenotypic characteristics associated to feeding of pyrethroid-resistant individuals could induce a behavioural resistance mechanism caused by a reduction in the amount of toxic gel bait ingested. If that is the case, resistance of this strain would not be associated to physiological changes affecting the toxicity of the active principle of gel baits, but to a lower efficacy of these products against resistant individuals due to less amount of gel consumed, generating control problems of this pest.
Palabras clave: BLATTELLA GERMANICA , FORAGING BEHAVIOUR , LOCATION , STIFFNESS
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/174200
DOI: http://dx.doi.org/10.1007/s13744-021-00937-4
Colecciones
Articulos (IIIA)
Articulos de INSTITUTO DE INVESTIGACION E INGENIERIA AMBIENTAL
Articulos (ITECA)
Articulos de INSTITUTO DE TECNOLOGÍAS EMERGENTES Y CIENCIAS APLICADAS
Articulos(UNIDEF)
Articulos de UNIDAD DE INVESTIGACION Y DESARROLLO ESTRATEGICOS PARA LA DEFENSA
Citación
Boné, Emiliano; Araoz, Beatriz; Gonzalez Audino, Paola Andrea; Sfara, Valeria; Feeding Behaviour of a Pyrethroid-Resistant Strain of the German Cockroach Blattella germanica (Linnaeus, 1767); Sociedade Entomológica do Brasil; Neotropical Entomology; 51; 2; 4-2022; 221-229
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