Antagonistic properties of Trichoderma viride with special reference to vegetable plant diseases

Abstract

Trichoderma viride is a fungus which is useful to control soil borne pathogens among these pathogen, Fusarium oxysporum and Alternaria alternata are considered as major pathogen of many economically important vegetable crops. It is isolated from infected vegetable plant material in December 2019. Generally farmers use disease resistant verity and chemical fungicide to control vegetable diseases which is harmful or insufficient, thus we use Bio control methods which is ecofreindly by using dual culture Method. In the present study Trichoderma viride use against Fusarium oxysporum, Alternaria alternata and Colletotrichum capsici inhibitions of mycelial growth of both the pathogens were observed. The highest inhibition showed against Colletotrichum capsici up to 89%, Alternaria alternata 73% and Fusarium Oxysporum 67% after 7 days of incubation. Standard fungicide (Hexaconazole 5ppm) is used to compeer with the test isolates. Trichoderma viride revealed better result than fungicide