Synergism of Trichoderma harzianum and five fungicides to Botrytis cinerea

The inhibitory activity of Trichoderma harzianum combined with five fungicides that have different mechanism to Botrytis cinerea was determined by confrontation method,mycelium growth rate method and detached leaf method.The results showed that the inhibitory activities of T.harzianum combined with boscalid,azoxystrobin,fludioxonil,fluazinam and SYP-Z048 to B.cinerea were all enhanced,which suggested that T.harzianum had synergism with the five fungicides.Therefore,the combined use of T.harzianum and fungicides in controlling B.cinerea is possible.