Biological control would be a prospective alternative to the existing chemical nematicides to keep the root knot nematode, Meloidogyne incognita regimented. Macrofungi are fungal species that produce fruiting bodies visible to the naked eye. Many of the macro basidiomycetous fungi produce several compounds which recorded with nematicidal and insecticidal properties. In this study, eleven macro basidiomycetes were screened in vitro against M. incognita. The crude culture filtrates were extracted and evaluated for their antagonistic effect on egg hatching and juvenile mortality of M. incognita. Crude culture filtrates of Ganoderma lucidum and Lentinus edodes were found to be toxic to egg masses and exhibit the highest mortality rate. The results revealed that the crude culture filtrates of G. lucidum reduced the M. incognita egg hatching 89.8% and increased the juvenile mortality by 93.5% which was followed by L. edodes which inhibited the egg hatching by 85% and caused juvenile mortality by 90.83%.

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The present study was carried out to evaluate the indigenous fungi from soil against the root knot nematode, Meloidogyne incognita. Eleven isolates were isolated and screened for their efficacy against nematode under in vitro condition for egg hatching and juvenile mortality. The results revealed that the isolate F6 showed the highest egg hatching inhibition (88.5%) followed by F11 and F7 compared to control after incubation for 72 h. The highest juvenile mortality of 73% was recorded in isolate F6 followed by F11 and F9 after 72 h. Isolate F6 was morphologically and molecularly identified as Talaromyces pinophilus and F9 and F11 were identified as Aspergillus corrugates and Aspergillus nidulans. Among the fungi, T. pinophilus was found to be highly effective against root knot nematode.