Efficacy assessment of entomopathogenic nematodes native to Morocco against the white grubs Rhizotrogus obesus Lucas and Geotrogus olcesii Fairmaire (Coleoptera: Scarabaeidae), Crop Protection 143 (2021)
Abstract The white grubs Rhizotrogus obesus Lucas and Geotrogus olcesii Fairmaire (Coleoptera: Scarabaeidae) are two of the most problematic soil-dwelling pests of some annual crops in Morocco, where they may become a target for entomopathogenic nematodes (EPN). In this study, fourteen EPN strains reported from different fields in Morocco were investigated for their efficacy against