Out of 12 fungi isolated fromSclerotiniainfested soils of pea fields, seven—viz Penicillium cyclopium, Paecilomyces lilaci‐nus, Aspergillus niger, Aspergillus fumigatus, Acremonium implicatum, Penicillium sheariandTrichothecium roseum—were found antagonistic toSclerotinia sclerotiorumthe cause of white mould of peas.Trichoderma harzianumwas found to parasitize the mycelium and sclerotia of S.sclerotiorumand destroyed the sclerotia within 15 days.Trichothecium roseumgave 100% inhibition of sclerotial germination, after 30 days of co‐incubation in soil. Application of wheat bran culture ofT. harzianumunder field conditions gave significant control of the disease plus a yield increase. Mycelial preparation of T.harzianumwas more effective in comparison to spore preparation.