Efecto de hormigas y arañas en la actividad de Aphytis spp. (Hymenoptera: Aphelinidae), parasitoides del piojo rojo de California Aonidiella aurantii (Maskell) (Hemiptera: Diaspididae) en cítricos
[EN] Aonidiella aurantii (Maskell) (Hemiptera: Diaspididae) is one of the most important citrus pest in the Mediterranean area. Parasitoids of genus Aphytis (Hymenoptera: Aphelinidae) are its main natural enemies and control this pest in several citrus areas but not in Spain. In order to improve the...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | español |
| OAI Identifier: | oai:riunet.upv.es:10251/76466 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/76466 |
| Access Level: | acceso abierto |
| Palabra clave: | Parasitism Spiders Ants Red scale Aphytis Piojo rojo Exclusión Arañas Hormigas PRODUCCION VEGETAL Máster Universitario en Producción Vegetal y Ecosistemas Agroforestales-Màster Universitari en Producció Vegetal i Ecosistemes Agroforestals |
| Sumario: | [EN] Aonidiella aurantii (Maskell) (Hemiptera: Diaspididae) is one of the most important citrus pest in the Mediterranean area. Parasitoids of genus Aphytis (Hymenoptera: Aphelinidae) are its main natural enemies and control this pest in several citrus areas but not in Spain. In order to improve the biological control of A. aurantii, the effect that ants and spiders may have on these parasitoids (population levels, parasitism and emigration) has been studied in an exclusion assay in a citrus orchard. Ants and spiders have been documented as predators of Aphytis in the literature. Two species of ants Lasius grandis Forel and Pheidole palidulla (Nylander) (Hymenoptera: Formicidae) and 19 species of spiders were identified as potential predators of Aphytis and excluded from half the sampled trees. The most abundant species of spiders were Cheiracanthium mildei (Koch) (Araneae: clubionidae), Icius hamatus (Koch) (Araneae: Salticidae), Ballus chalybeus (Simon) (Araneae: Salticidae) y Philodromus rufus (Walck) (Araneae: Phylodromidae). Although Aphytis populations tended to increase in exclusion trees there were not significant differences with control trees. This increase could be explained by the lower emigration rates, although neither significant, of Aphytis melinus DeBach (Hymenoptera: Aphelinidae) males in exclusion trees. Parasitism rates were similar in both treatments. Therefore, any of these two groups of predators affected negatively the activity of Aphytis parasitoids at least at the short period of this study. |
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