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The present study was conducted to know the antagonistic activity of the fungal isolates which were isolated from phylloplane and rhizosphere mycoflora of chilli by serial dilution method. The fungal antagonist obtained from the phylloplane were identified as Aspergillus niger, Aspergillus flavus, Penicillium spp., Paecilomyces spp., Fusarium spp., Alternaria spp., Mucor spp and Rhizopus spp where as from the rhizosphere four Trichoderma isolates was evaluated against Choanephora cucurbitarum under in vitro conditions. The results revealed that among the fungal isolates from phylloplane, Fusarium spp showed maximum inhibition (57.77%) and minimum inhibition was obtained in case of Alternaria spp (47.00%). Similarly from rhizosphere Trichoderma viride isolate 1, Trichoderma harzianum isolate 2, Trichoderma viride isolate 2 and Trichoderma harzianum isolate 1(62.44, 55.33, 62.22 and 40.11 per cent, respectively) recorded significantly highest per cent inhibition of mycelial growth of C. cucurbitarum.

Key words: chilli, phylloplane, rhizosphere, mycoflora, Choanephora cucurbitarum, Fusarium spp, Trichoderma viride, Trichoderma harzianum