Abstract: Pleurotus, a group of nematophagous fungi, destroyed nematodes by producing toxin The activity of 75 isolates, assigned to Pleurotus and other genera were tested against Panagrellus redivivus on the media of PDA, CMA and WA Results showed that most of isolates tested was toxic to the nematode, and higher activity occurred on more nutritious media The isolates of K₁₄ and others resulted in mortality higher than 90% within 12h 8 isolates of P. spodoleucus, P. ferulae, P. corticatus, P. memberancens, Lampteromyces japonicus and other unidentified fungi were first reported for their nematicidal activity.