Methodology and results: Four isolates of T. harzianum (Th-F, Th-G, Th-I and Th-N)obtained from CABI Biosciences, Egham, UK were evaluated. In-vitro interactions between C. capsici and T. harzianum isolates showed that T. harzianum isolates significantly (P≤0.05) reduced colony radius of C. capsici compared to
the control.