[Solution from source] Paecilomyces lilacinus is a nematophagous fungus that parasitises the eggs of root-knot and cyst nematodes and is sold as a bionematicide. Pisolithus tinctorius is an ectomycorrhizal fungus, and Gliocladium virens and Pseudomonas cepacia are mainly used against fungal pathogens. Answer (1).