Study of Antagonism of Six Trichoderma Strains to Four Species of Pathogenic Fungi

Six strains of Trichoderma spp. and four species of plant pathogenic fungi,Curvalaria lunata, Rhizoctonia solani, Cladosporiaum fulvum, and Alternaria tennis were contrarily cultivated in plate. The width of their antagonism self were determined to measure the level of antagonismic reaction of Trichoderma strains to tested plant pathogenic fungi. The results suggested that Trichoderma strains showed different antagonismic reaction to 4 species of tested plant pathogenic fungi and the Trichoderma strains of T5 and T6 showed the strongest antagonismic reaction to four tested plant pathogenic fungi, the T1 strain showed stronger antagonismic reaction too.