Ability of Muscidifurax raptorellus and Other Parasitoids and Predators to Control Drosophila suzukii Populations in Raspberries in the Laboratory

Insects

Phanie Bonneau¹  Valérie Fournier¹  Annabelle Firlej²  Justin Renkema³ 

[1] Centre de Recherche en Innovation sur les Végétaux (CRIV), Université Laval, Québec City, QC G1V 0A6, Canada;Institut de Recherche et de Développement en Agroenvironnement (IRDA), Saint-Bruno-de-Montarville, QC J3V 0G7, Canada;London Research and Development Centre—Vineland Campus, Agriculture and Agri-Food Canada, Vineland Station, ON L0R 2E0, Canada;

关键词: Drosophila suzukii;    biological control;    invasive pest;    host-parasitoid interactions;    predation;   

DOI  :  10.3390/insects10030068

来源: DOAJ

【 摘 要 】

Drosophila suzukii is an invasive pest and economic threat to berry crops in Europe and the Americas. Current methods of control of this pest rely primarily on frequent applications of insecticides; therefore, there is a need for alternative control methods to reduce insecticide reliance. In this study, we evaluated the biological control potential of three parasitoid wasps: Diglyphus isaea, Muscidifurax raptorellus and Pachycrepoideus vindemmiae, and four predators: Chrysoperla carnea, Dicyphus hesperus, Orius insidiosus and Podisus maculiventris. Experiments were conducted for 15 days under controlled conditions in experimental arenas with D. suzukii females and raspberries, allowing for all life stages of D. suzukii to be available to natural enemies. Results showed the first evidence of M. raptorellus’s ability to parasitize D. suzukii, resulting in a 40% reduction. Orius insidiosus, P. vindemmiae and C. carnea were also efficient, reducing D. suzukii numbers by 49%, 43% and 32%, respectively. Predator preferences for each D. suzukii life stage were assessed. The clutch size, sex ratio and adult size variability of D. suzukii pupal parasitoids were also evaluated. This study expands the list of species that can effectively parasitize D. suzukii and provides new insights into the biological responses of M. raptorellus to D. suzukii pupae.

【 授权许可】

Unknown