title: Location of Host and Host Habitat by Fruit Fly Parasitoids.
abstract: Augmentative releases of parasitoids may be a useful tool for the area-wide management of tephritid pests. The latter are parasitized by many wasp species, though only a few of them are relevant for augmentative biocontrol purposes. To date, nearly all the actual or potential biocontrol agents for such programs are egg or larval Opiinae parasitoids (Hymenoptera: Braconidae). Here, we review the literature published on their habitat and host location behavior, as well as the factors that modulate this behavior, which is assumed to be sequential; parasitoids forage first for the host habitat and then for the host itself. Parasitoids rely on chemical, visual, and mechanical stimuli, often strongly related to their ecology. Behavioral modulation factors include biotic and abiotic factors including learning, climatic conditions and physiological state of the insect. Finally, conclusions and perspectives for future research are briefly highlighted. A detailed knowledge of this behavior may be very useful for selecting the release sites for both inundative/augmentative releases of mass-reared parasitoids and inoculative releases for classical biocontrol.
authors.affiliation: CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR PVBMT Cirad, Université de La Réunion, Pôle de Protection des Plantes, 97410, Saint-Pierre, France. quilici@cirad.fr.
authors.forename: Serge
authors.initials: S
authors.lastname: Quilici
authors.affiliation: CIRAD (Centre de Coopération Internationale en Recherche Agronomique pour le Développement), UMR PVBMT Cirad, Université de La Réunion, Pôle de Protection des Plantes, 97410, Saint-Pierre, France. rousse.pascal@wanadoo.fr.
authors.forename: Pascal
authors.initials: P
authors.lastname: Rousse
keywords: chemical stimuli; host habitat; host location; mechanical stimuli; tephritid parasitoids; visual stimuli