Avoidance of parasitized hosts by female wasps of Tamarixia radiata (Hymenoptera: Eulophidae), parasitoid of Diaphorina citri (Hemiptera: Liviidae), vector of citrus greening disease

Xulin Chen, Gabriela Pavan Bordini, Philip A. Stansly

Abstract


Female wasps of Tamarixia radiata (Waterston) (Hymenoptera: Eulophidae) avoided probing or parasitizing hosts that the same or another female wasp had already parasitized. Furthermore, they discriminated against hosts parasitized by herself versus another female wasp when these were the only choices. Nevertheless, incidence of superparasitism was low under these conditions compared with normal parasitism, underscoring the strength of the deterrent mark.

 

Sumario

La avispa Tamarixia radiata (Waterston) (Hymenoptera: Eulophidae) evita sondar o parasitar huéspedes ya parasitados, que sea de ella o de otra hembra. Además, ellas discriminan contra huéspedes parasitados por sí misma frente a las de otra hembra cuando solo existan estas dos opciones. Sin embargo, la incidencia de superparasitismo fue reducido bajo estas condiciones comparados a parasitismo normal, lo que subraya la fuerza de la marca disuasiva.

 

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Keywords


superparasitism; host discrimination; host marking

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