A Minor Role of Host Fruit on the Parasitic Performance of Aganaspis daci (Hymenoptera: Figitidae) on Medfly Larvae
Unidad Asociada de Entomología IVIA-CIB CSIC, Centro de Protección Vegetal y Biotecnología, Instituto Valenciano de Investigaciones Agrarias (IVIA), Ctra. Moncada a Náquera km 4.5, 46113 Moncada, Spain
Unidad de Zoología, Facultad de Biología, Universidad de Salamanca, 37007 Salamanca, Spain
Department of Crop Protection, Biological Control and Ecosystem Services, Instituto Murciano de Investigación y Desarrollo Agrario y Alimentario, C/Mayor s/n, La Alberca, 30150 Murcia, Spain
High Agronomic Institute of Chott-Mariem, University of Sousse, Chott-Mariem 4042, Tunisia
Smurfit Institute of Genetics, Trinity College, University of Dublin, Dublin2 D02 VF25 Dublin, Ireland
Integrative Systems Biology Group, Institute for Plant Molecular and Cell Biology (IBMCP) from the Spanish National Research Council (CSIC), Polytechnic University of Valencia (UPV), 46022 Valencia, Spain
Author to whom correspondence should be addressed.
Both authors should be considered first author.
Academic Editors: Lukasz L. Stelinski and Brian T. Forschler
Received: 9 February 2021 / Revised: 25 March 2021 / Accepted: 10 April 2021 / Published: 13 April 2021
The medfly, Ceratitis capitata, is one of the main pests of citrus and other fruits worldwide. One of the most promising parasitoids for the control of this pest is Aganaspis daci, which has been recently discovered in the Mediterranean Basin. The development of fruit pests is strongly affected by the host fruit and this is also expected to affect the parasitic performance of their natural enemies. Therefore, in this study, we measured both the olfactory and parasitic response of female Aganaspis daci to different fruit species that can host medfly larvae. This parasitoid was more attracted to apples and uninfested fruit and showed very similar parasitic activity among the different tested fruits. However, the parasitic performance differed significantly depending on the environmental conditions under which the assays were conducted, showing good results in the laboratory and a much poorer performance in greenhouse trials. We conclude that A. daci may be a good candidate to control the medfly in a range of different crops, but only when climatic conditions allow normal activity of this species.