Evaluation of the Potential of Trichoderma viride as Biological Control Agent of Root Rot Disease, Fusarium solani, of Faba Bean

Abstract

An experiment was conducted to determine the potential of Trichoderma viride as an antagonist to the pathogen Fusarium. solani of faba bean. The radial growth of F. solani was significantly reduced on media as the concentration of T. viride and the exposure
time increased. The statistical analysis indicates that factors such as concentration of the antagonistic pathogen, exposure time and interaction effects are highly significant at a probability level of 1%. When treatments were compared in the green house, soil
treated by T. viride has shown the least percentage of mortality of faba bean by F. solani in all stages of the plant. There is highly significant difference at a probability level of less than 1% with corresponding coefficient of variation of 8.40%. So, in this laboratory and greenhouse studies the antagonist T. viride proved to be an effective control agent against F. solani.