In a laboratory study, recently it has been demonstrated that the combined application of an entomopathogenic nematode,  Heterorhabditis indica and an insect parasitoid, Habrobracon hebetor can enhance the mortality of Indianmeal moth, Plodia interpunctella.

Please read following literature for more information on compatibility of entomopathogenic nematodes and insect parasitoides

Mbata, G.N. and Shapiro-Ilan, D.I. 2010 Compatibility of Heterorhabditis indica (Rhabditida: Heterorhabditidae) and Habrobracon hebetor (Hymenoptera: Braconidae) for biological control of Plodia interpunctella (Lepidoptera: Pyralidae). Biological Control. 54: 75-82.