author(s)
Manju Kumari, MK Sharma, BL Baheti, CP Nama and BS Chandrawat

abstract
Investigations were carried out in vitro to evaluate the antagonistic effect of fungal bio-control agents (local isolates) i.e., Trichoderma viride and Trichoderma asperellum on hatching and larval mortality of root-knot nematode, Meloidogyne incognita. Bio-control agents were tested at 10⁶, 10⁷ and 10⁸ dilutions on hatching and juvenile mortality of M. incognita after 24, 48, 72 and 96 hrs exposure period as compared to control. T. viride and T. asperellum were found at par and significantly effective on hatching inhibition and larval mortality of M. incognita. Among different dilutions, T. viride at 10⁶ dilutions gave maximum hatching inhibition and larval mortality followed by T. asperellum at 10⁶ dilutions and T. viride at 10⁷ dilutions after 96 hrs. T. asperellum at 10⁸ dilutions was found least effective at different period of exposure.