Primer registro de Leptopilina boulardi (Hymenoptera: Figitidae) asociado a Drosophila suzukii (Diptera: Drosophilidae) en el Alto Valle de Río Negro y Neuquén, Patagonia, Argentina

Abstract

The larval endoparasitoid Leptopilina boulardi (Hymenoptera: Figitidae) is reported for the first time associated to Drosophila suzukii (Diptera: Drosophilidae) in raspberries and cherries crops at Alto Valle of Río Negro and Neuquén, being this the southernmost report in Argentina. Parasitoid diagnosis and prevalence are briefly commented. KEYWORDS. Biological control. Parasitoid. Pest. Spotted wing drosophila. RESUMEN. Se cita por primera vez la presencia del endoparasitoide larval Leptopilina boulardi (Hymenoptera: Figitidae) asociado a Drosophila suzukii en cultivos de frambuesas y cerezas del Alto Valle de Río Negro y Neuquén, siendo este reporte el más austral en la Argentina. Se comentan brevemente la diagnosis y la prevalencia del parasitoide.

Functional and numerical response and mutual interference of Goniozus legneri (Hymenoptera: Bethylidae) on Cydia pomonella (Lepidoptera: Tortricidae): Its implications for biological control

“…Goniozus legneri Gordh (Hymenoptera: Bethylidae) is a primary, ecto‐larval parasitoid, with gregarious behaviour that attacks a wide range of lepidopterous pests of economically important crops (Aubel, 2022; Cisternas & Rodríguez, 2022; Garrido et al., 2019). It is an endemic parasitoid from Uruguay and central Argentina and is also present in Chile (Aciar et al., 2001; Garrido et al., 2005; Legner & Silveira‐Guido, 1983; Zaviezo et al., 2007). In the 1970s, G. legneri was introduced from Uruguay and Argentina in California for the control of Amyelois transitella (Lepidoptera: Pyralidae), an important pest of almonds (Legner & Warkentin, 1988), and it was in use for more than 10 years (Legner & Gordh, 1992).…”

“…This led to several studies on different aspects of the biology of G. legneri such as oviposition, longevity and fecundity, at different temperatures and on different hosts (Balasubramanian, 2017; Garrido et al., 2019; Legner & Warkentin, 1988; Shoeb et al., 2005). In Argentina, G. legneri has been observed attacking with Cydia pomonella larvae (Lepidoptera: Tortricidae) on walnut fruit in the north‐west region and in apple orchards in Patagonia (Aciar et al., 2001; Garrido et al., 2005).…”

“…Control methods for codling moth have mainly been based on the use of broad‐spectrum insecticides and, to a lesser extent, more environmentally friendly tools, such as Mating Disruption Technique (Senasa, 2023) and the use of different exotic and native parasitoids (Garrido et al., 2005; Tortosa et al., 2014). Regarding G. legneri as a parasitoid of C. pomonella , Laumann et al.…”

Does the Neotropical‐native parasitoid Ganaspis pelleranoi successfully attack the worldwide invasive pest Drosophila suzukii?

“…There were two consecutive D. suzukii invasion events in Argentina from previously invaded areas such as North America and Brazil (de la Vega et al., 2020). Since its first detection in the country in 2014 (Funes et al., 2023), a broad range of resident figitid larval‐pupal parasitoid species have been identified in the last few years attacking D. suzukii , such as L. clavipes, Ganaspis hookeri Crawford (Lue et al., 2017) , G. pelleranoi (Brèthes) (Gallardo et al., 2022a), G. brasiliensis (Gallardo et al., 2022b), L. boulardi (Garrido et al., 2018), Euxestophaga argentinensis Gallardo, Hexacola bonaerensis Reche, and Dieucoila octofagella Reche (Reche et al., 2021). Despite this diversity, none of these parasitoid species were abundant, nor did they provide reliable control of the invasive pest, which is expected due to the short interaction time.…”

First report of Spalangia endius (Hymenoptera: Pteromalidae) associated with Drosophila suzukii (Diptera: Drosophilidae) in berries and stone fruit crops from North Patagonian (Argentina)

“…Se determinaron tres especies de himenópteros parasitoides. Dos se encontraban registradas en la zona: L. boulardi (Figitidae) (Garrido et al, 2018) y P. vindemmiae (Pteromalidae. (Funes et al, 2020).…”